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# Inverse of exponential function ### Find Inverse Of Exponential Function

1. Note that the given function is a an exponential function with domain (-Ōł× , + Ōł×) and range (0, +Ōł×). We first write the function as an equation as follows. y = e x-3. Take the ln of both sides to obtain. x-3 = ln y or x = ln y + 3. Change x into y and y into x to obtain the inverse function. f -1 (x) = y = ln x + 3
2. The video takes an exponential function and transforms it to its logarithmic inverse. For more ma... This is the 4 step process for finding an inverse function
3. Answer: Logarithmic functions are the inverses of exponential functions. The inverse of the exponential function y = ax is x = ay. The logarithmic function y = loga</sub>x is defined to be equivalent to the exponential equation x = ay
4. The inverse of exponential functions are called the logarithmic functions. Using the properties that we know about the inverse of a function (Refer section 2.7 page 302), can you find the domain and range of logarithmic functions? If !=#$, we know that inorder to find the inverse we just interchange x and y. So the inverse of !=#$ is %=&' which is equivalent to '=()* &% where +>0 and #>0, #ŌēĀ1 The function 2(+)=567 8+ is the logarithmic function with base b. %=&' and '=()
5. Inverse Exponential Functions. If y = f(x) = ab x, then we may solve for x in terms of y using logarithms: x = f -1 (y) = log b (y/a) We see that the inverse of an exponential with base b is a logarithm with base b . Recall that the logarithm is defined only for positive inputs. Thus we must have y/a > 0 for the inverse
6. The inverse of an exponential function is a logarithm function. An exponential function written as f (x) = 4^x is read as four to the x power. Its inverse logarithm function is written as f^-1 (y) = log4y and read as logarithm y to the base four
7. Derivative of the exponential function: $\dfrac{d}{dx}a^x = \ln(a)a^{x}$ Here we consider integration of natural exponential function. Note that the exponential function $y = e^{x}$ is defined as the inverse of $\ln(x)$. Therefore $\ln(e^x) = x$ and $e^{\ln x} = x$

In this video I graph y = 2^x, find its inverse logarithmic function, and graph the inverse logarithmic function using transformation of functions Inverse Functions Example. Example 1: Find the inverse of the function f(x) = ln(x - 2) Solution: First, replace f(x) with y. So, y = ln(x - 2) Replace the equation in exponential way , x - 2 = e y. Now, solving for x, x = 2 + e y. Now, replace x with y and thus, f-1 (x) = y = 2 + e y. Example 2: Solve: f(x) = 2x + 3, at x = 4. Solution: We have, f(4) = 2 ├Ś 4 + Exponential Functions The exponential function with base b is defined for x Ōłł R by f(x) = bx, where b > 0 and b ŌēĀ 1. Graphically, we can see the following properties: ’┐╝’┐╝’┐╝’┐╝’┐╝ Furthermore, because b > 0 (by definition), we know that f(x) = bx ŌēĀ 0 for any x Ōłł R logbx = y if and only if by = x Logarithmic functions are the inverse of the exponential functions with the same bases

inverse\:f (x)=x^3. inverse\:f (x)=\ln (x-5) inverse\:f (x)=\frac {1} {x^2} inverse\:y=\frac {x} {x^2-6x+8} inverse\:f (x)=\sqrt {x+3} inverse\:f (x)=\cos (2x+5) inverse\:f (x)=\sin (3x) function-inverse-calculator. en passing of the graph of values that exponential function of inverse. Convince yourself that exponential identities involving logarithms in your answer in many different exponential functions are inverse tangent function is there was a given a quarter of exponentials. With exponential expression on thi

1. The form of the solution is then $$\Theta (s,x) = \frac{c_{\infty}}{s} + c_1 \exp{\left( \sqrt{\frac{s}{D}} x \right)} + c_2 \exp{\left( -\sqrt{\frac{s}{D}} x \right)}$$ $c_1 = 0$ is infered from initial value theorem, or from the boundary conditions at $x = \infty 2. This function, also denoted as exp x, is called the natural exponential function, or simply the exponential function. Since any exponential function can be written in terms of the natural exponential as = ŌüĪ, it is computationally and conceptually convenient to reduce the study of exponential functions to this particular one.The natural exponential is hence denoted b 3. Definitions Probability density function. The probability density function (pdf) of an exponential distribution is (;) = {, <Here ╬╗ > 0 is the parameter of the distribution, often called the rate parameter.The distribution is supported on the interval [0, Ōł×). If a random variable X has this distribution, we write X ~ Exp(╬╗).. The exponential distribution exhibits infinite divisibility 4. x=2^y swap the x and y Inverse of Exponential Equations 3) c -1 -1 1) Y=2^x set set the equation equal to you Inverse Function of Linear & Exponential Equations For Example Verifying your answer 2) You must verify your answer to make sure your inverse is the right inverse 5. 3.3 The logarithm as an inverse function In this section we concentrate onunderstandingthe logarithm function. If the logarithm is understoodas the inverse of the exponential function, then the variety of properties of logarithms will be seen asnaturally owing out of our rules for exponents. 3.3.1 The meaning of the logarith Derivatives of inverse exponential functions We derive the derivatives of inverse exponential functions using implicit differentiation. Geometrically, there is a close relationship between the plots of and , they are reflections of each other over the line Description. x = expinv (p) returns the inverse cumulative distribution function (icdf) of the standard exponential distribution, evaluated at the values in p. example. x = expinv (p,mu) returns the icdf of the exponential distribution with mean mu , evaluated at the values in p. example. [x,xLo,xUp] = expinv (p,mu,pCov) also returns the 95%. Therefore, if we have the exponential function f(x) = bx, then the inverse is the logarithmic function f ŌłÆ 1(x) = logbx. The common logarithm has a base 10 and can be written as log10x = logx. In other words, the log symbol written without a base is interpreted as the logarithm to base 10. For example, log25 = log1025 logarithmic function and an exponential function are inverses (F-BF.B.4d). Depending on how much students recall from Algebra II, it may be necessary to provide some review and practice for working with exponential and logarithmic expressions and rewriting them using their definitions, identities, and properties ### What is the inverse of an exponential function? semaths The exponential function (Sect. 7.3) I The inverse of the logarithm. I Derivatives and integrals. I Algebraic properties. The inverse of the logarithm Remark: The natural logarithm ln : (0,Ōł×) ŌåÆ R is a one-to-one function, hence invertible. De’¼ünition The exponential function, exp : R ŌåÆ (0,Ōł×), is th Example 1) Find the Inverse Function. Solution 1) Since the value of 1 is repeated twice, the function and the inverse function are not one-to-one function. Therefore, after swapping the values, the inverse function will be: Example 2) Find the function f (x) if the inverse function is given as f ŌłÆ 1 (x) = - 1 2 x+1 The function E(x) = ex is called the natural exponential function. Its inverse, L(x) = logex = lnx is called the natural logarithmic function. Figure 3.9.1: The graph of E(x) = ex is between y = 2x and y = 3x. For a better estimate of e, we may construct a table of estimates of BŌĆ▓ (0) for functions of the form B(x) = bx The inverse of an exponential function is the quadratic function? true or false? Get the answers you need, now! tacosaremyaddic tacosaremyaddic 02/23/2018 Mathematics High School answered The inverse of an exponential function is the quadratic function? true or false? 1 See answer tacosaremyaddic is waiting for your help. Add your answer and. • Inverse of Exponential Functions. iSam Tutors. March 30 ┬Ę Our CEO explaining the Inverse of Exponential Functions. Please note that this week the workshops will be off for the Easter Weekend, and then next week (10 April 2021) we are back again!. • We also learned that an exponential function has an inverse function, because each output (y) value corresponds to only one input (x) value. The name given this property was one-to-one. Source: The material in this section of the textbook originates from David Lippman and Melonie Rasmussen, Open Text Bookstore, Precalculus: An. • Inverse Exponential Functions. If y = f(x) = ab x, then we may solve for x in terms of y using logarithms: . x = f -1 (y) = log b (y/a). We see that the inverse of an exponential with base b is a logarithm with base b. Recall that the logarithm is defined only for positive inputs • Inverse trigonometric functions include arcsin and arccos; arctan and arccot; and arcsec and arccsc. They can be thought of as the inverses of the corresponding trigonometric functions. Arcsine and Arccosine: The usual principal values of the arcsin(x) and arccos(x) functions graphed on the Cartesian plane • exp(x) = inverse of ln(x) Last day, we saw that the function f (x) = lnx is one-to-one, with domain (0;1) and range (1 ;1). We can conclude that f (x) has an inverse function which we call the natural exponential function and denote (temorarily) by f 1(x) = exp(x), The de nition of inverse functions gives us the following • Logarithmic functions are the inverses of exponential functions. The inverse of the exponential function y = ax is x = ay. The logarithmic function y = logax is defined to be equivalent to the exponential equation x = ay. By definition, alogax = x, for every real x > 0 ### Inverse Exponential Functions - wmueller • This example verifies the inverse property of the exponential function using the distributive property of multiplication. Start with the inverse property of the exponential function. Multiply both sides by exp(x) and rearrange the equation so 1 is on the left side. Apply the power series definition of the exponential function, shown below, to. • Inverse, Exponential, and Logarithmic Functions , College Algebra and Trigonometry 7th - Margaret L. Lial, John Hornsby, David I. Schneider | All the textbook Our Discord hit 10K members! ĒĀ╝ĒŠē Meet students and ask top educators your questions • Finally, to find the y intercept of an exponential in which h is not 0, just plug 0 as f(x)/y, and solve for x. Exponential Equations. To solve an exponential equation, you use logarithms (remember, logs and exponentials are inverses), specifically the power property. Example: 2 x =6 ### What Is the Inverse of an Exponential Function The hyperbolic tangent function is also one-to-one and invertible; its inverse, \tanh^{-1} x, is shown in green. It is defined only for -1 x 1 . Just as the hyperbolic functions themselves may be expressed in terms of exponential functions, so their inverses may be expressed in terms of logarithms The inverse function returns the original value for which a function gave the output. If the function is one-to-one there will be a unique inverse. X ay a 0 and a1. The inverse of an exponential function is a logarithm function. The above properties of increasing and decreasing show that exponential functions are 1-1 and therefore have inverses. Inverse, Exponential, and Logarithmic Functions. Every one-to-one function f has an inverse function f-1 which essentially reverses the operations performed by f. More formally, if f is a one-to-one function with domain D and range R, then its inverse f-1 has domain R and range D. f-1 is related to f in the following way: If f (x) = y, then f-1. 76 Exponential and Logarithmic Functions 5.2 Exponential Functions An exponential function is one of form f(x) = ax, where is a positive constant, called the base of the exponential function. For example f(x)=2x and f(x)=3x are exponential functions, as is 1 2 x. If we let a =1in f(x) xwe get , which is, in fact, a linear function. For this reason we agree that the base of an exponential function Inverse of exponential function - 10389087 myralynneviesca1993 myralynneviesca1993 04.02.2021 Math Senior High School answered Inverse of exponential function 1 See answer xoee. ### Inverse Functions: Exponential, Logarithmic, and • The graph of the e xponential function y = a x = e bx, a > 0 and b = ln a: The exponential function is inverse of the logarithmic function since its domain and the range are respectively the range and domain of the logarithmic function, so tha • The Natural Logarithm Function. One exponential function is so important in mathematics that it is distinguished by calling it the exponential function. This exponential function is written as ⅇ x or, particularly when the expression in the exponent is complicated, exp x.The inverse of this function is just as important in mathematics • The natural exponential is defined as the number raised to the power and the natural logarithm is its inverse function. We can also think about raising some number other than to the power and consider the inverse function of the result. These are the generalized expontial and logarithm functions ### graphing exponential functions & inverses (1) - YouTub • 406 CHaptER 4 Inverse Exponential and Logarithmic Functions One-to-One Functions Suppose we define the following function F. F = 51-2, 22, 1-1, 12, 10, 02, 11, 32, 12, 526 (We have defined F so that each second component is used only once.) We can form another set of ordered pairs from F by interchanging the x- and y-values of each pair in F.We call this set G • Inverse of exponential function Answers: 1 See answer • 9.3 The exponential function. In this section, we define what is arguably the single most important function in all of mathematics. We have already noted that the function lnx is injective, and therefore it has an inverse. Definition 9.3.1 The inverse function of ln(x) is y = exp(x), called the natural exponential function . • Thus, the connection between logs and exponents is that they are inverses. The base b of an exponent b x is equal to the base of its inverse logarithm log b x. To find the inverse of a logarithmic or exponential function with a, b, h, or k shifting, use the procedure outlined previously • A Comparison between Logarithmic Functions and Exponential Functions Looking at the two graphs of exponential functions above, we notice that both pass the horizontal line test. This means that an exponential function is a one-to-one function and thus has an inverse. To find a formula for this inverse, we star • Yes, exponential function is inverse function of logarithmic function. In fact base of log function and exponential function are same. If $f$ is a function that maps $x \to y$. Then inverse function( if it exists) is [math]f^.. • logarithmic function: Any function in which an independent variable appears in the form of a logarithm. The inverse of a logarithmic function is an exponential function and vice versa. logarithm: The logarithm of a number is the exponent by which another fixed value, the base, has to be raised to produce that number Logarithmic functions are the inverses of exponential functions.The inverse of the exponential function y = a x is x = a y.The logarithmic function y = log a x is defined to be equivalent to the exponential equation x = a y. y = log a x only under the following conditions: x = a y, a > 0, and aŌēĀ1 Nth root functions are the inverse functions of exponential functions x n. In simple terms, it does the opposite, or undoes the exponential. For example, if x = 2, the exponential function 2 x would result in 2 2 = 4. The nth root (in this case, the cube root, ŌłÜ) takes the output (4), and gives the original input: ŌłÜ(4) = 2 Inverse of exponential function worksheet Example 1Continue the inverting function, its domain, and the range of the function provided by byf(x) = ex-3 Case solution 1Note that a given function is an exponential function with the domain (-Ōł× , + Ōł×) and range (0, +Ōł×) Finding the inverse of a log function is as easy as following the suggested steps below. You will realize later after seeing some examples that most of the work boils down to solving an equation. The key steps involved include isolating the log expression and then rewriting the log equation into an exponential equation exponential function. This section is already the inverse of the exponential function. Since logarithms and exponentials are inverse functions, verify to the functions are inverse functions. Assume the strive is decreasing exponentially and estimate the scurry of the PC four years after aid is purchased. These suggest the solutions The exponential function models exponential growth and has the unique property where the output of the function at a given point is proportional to the rate of change of the function at that point. The inverse of the exponential function is the natural logarithm which represents the opposite of exponential growth, exponential decay Local Video. We discuss why we use the logs in the inverse of an exponential function. The asymptotes are fully explained. The use of the reflection line y=x is explored and expounded on. The log function is covered in this video NumPy Mathematical Functions - Trigonometric, Exponential, Hyperbolic. NumPy consists of a large number of built-in mathematical functions that can solve mathematical problems. The in-built math module is imported for mathematical calculations. It can perform trigonometric operations, rounding functions and can also handle complex numbers Inverse Function Calculator. The calculator will find the inverse of the given function, with steps shown. If the function is one-to-one, there will be a unique inverse. Your input: find the inverse of the function. $$. y=\frac {x + 7} {3 x + 5}$$$

Logarithmic functions are the inverses of exponential functions. The inverse of the exponential function y = ax is x = ay. The logarithmic function y = logax is defined to be equivalent to the exponential equation x = ay. y = logax only under the following conditions: x = ay, a > 0, and aŌēĀ1. It is called the logarithmic function with base a The exponential function is one-to-one, with domain and range . Therefore, it has an inverse function, called the logarithmic function with base . For any , the logarithmic function with base , denoted , has domain and range , and satisfies. if and only if . For example, Furthermore, since and are inverse functions,

The inverse of an exponential function is a logarithmic function. Remember that the inverse of a function is obtained by switching the x and y coordinates. This reflects the graph about the line y=x. As you can tell from the graph to the right, the logarithmic curve is a reflection of the exponential curve.. The inverse of a logarithmic function is an exponential function. When you graph both the logarithmic function and its inverse, and you also graph the line y = x, you will note that the graphs of the logarithmic function and the exponential function are mirror images of one another with respect to the line y = x

### Inverse Function (Definition and Examples

• Analyzing graphs of exponential functions. (Opens a modal) Analyzing graphs of exponential functions: negative initial value. (Opens a modal) Modeling with basic exponential functions word problem. (Opens a modal) Practice. Exponential functions from tables & graphs Get 3 of 4 questions to level up
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• Laplace transform of cos t and polynomials. Shifting transform by multiplying function by exponential. Laplace transform of t: L {t} Laplace transform of t^n: L {t^n} Laplace transform of the unit step function. Inverse Laplace examples. This is the currently selected item. Dirac delta function. Laplace transform of the dirac delta function
• This example verifies the inverse property of the exponential function using the distributive property of multiplication. Start with the inverse property of the exponential function. Multiply both sides by exp(x) and rearrange the equation so 1 is on the left side. Apply the power series definition of the exponential function, shown below, to.

### Functions and Their Inverses - Worked Example

1. that is the inverse of an exponential function (such as or ) so that the independent variable appears in a logarithm. Laws of Logarithm: P1: P2: P3: P4: P5: LOGARITHMIC FUNCTIONS D27: D28: Derivative of Logarithmic Functions The symbol u denotes an arbitrary differentiable function of
2. Find inverse functions: Solve an equation of the form f (x) = c for a simple function f that has an inverse and write an expression for the inverse. For example, f (x) =2x 3 or f (x) = (x+1)/ (x-1) for x ŌēĀ 1. F-LE.B.5. Interpret expressions for functions in terms of the situation they model. Interpret the parameters in a linear or exponential.
3. 6. An exponential function is increasing when a > 1 and decreasing when 0 < a < 1 7. An exponential function is one to one, and therefore has the inverse. The inverse of the exponential function f(x) = ax is a logarithmic function g(x) = log a (x) 8. Since an exponential function is one to one we have the following property: If au = av, then u = v
4. Inverse exponential function. Find the inverse function its domain and range of the function given by f x e x-3 Solution to example 1 Note that the given function is a an exponential function with domain - and range 0. Before formally defining inverse functions and the notation that were going to use for them we need to get a definition out.
5. An exponential function can describe growth or decay. The function. g ( x) = ( 1 2) x. is an example of exponential decay. It gets rapidly smaller as x increases, as illustrated by its graph. In the exponential growth of f ( x), the function doubles every time you add one to its input x. In the exponential decay of g ( x), the function shrinks.
6. Know how to compute the derivatives of exponential functions. Be able to compute the derivatives of the inverse trigonometric functions, speci cally, sin 1 x, cos 1x, tan xand sec 1 x. Know how to apply logarithmic di erentiation to compute the derivatives of functions of the form (f(x))g(x), where fand gare non-constant functions of x.

Inverse, Exponential and Logarithmic Functions teaches students about three of the more commonly used functions, and uses problems to help students practice how to interpret and use them algebraically and graphically. Students can learn the properties and rules of these functions and how to use them in real world applications through word problems such as those involving compound interest and. An exponential function is the inverse of a logarithmic function. A)True B)False . Related Answe Exponential functions. By definition:. log b y = x means b x = y.. Corresponding to every logarithm function with base b, we see that there is an exponential function with base b:. y = b x.. An exponential function is the inverse of a logarithm function. We will go into that more below.. An exponential function is defined for every real number x.Here is its graph for any base b ### Logarithm-- Inverse of an Exponential Function

Review: Properties of Logarithmic Functions. The following rules apply to logarithmic functions (where and , and is an integer). Change of base formula (if : Since the logarithm is the inverse of the exponential function, each rule of exponents has a corresponding rule of logarithms. Example 14.1: Combine the terms using the properties of. Example 2: Find the inverse function, if it exists. State its domain and range. This function is the bottom half of a parabola because the square root function is negative. That negative symbol is just. ŌłÆ 1. -1 ŌłÆ1 in disguise. In solving the equation, squaring both sides of the equation makes that. ŌłÆ 1

Definition of the Natural Exponential Function - The inverse function of the natural logarithmic function f x xln is called the natural exponential function and is denoted by f x e 1 x. That is, yex if and only if xy ln. Properties of the Natural Exponential Function: 1. The domain of f x ex , is f f , and the range is 0,f . 2. The function f. The inverse of the exponential function gx = a is the logarithm. x = log g a. Explanation. We take the function. To determine the inverse function we have to answer the question: To what power do I have to raise the base g to find a? The answer is. to the power logg a. It is nothing but a number. The spelling frightens everyone in the beginning 3.5 Derivatives of Exponential Functions. Derivatives of exponential functions are based on the exponential function. The derivative is pretty basic, and you should be able to follow the proof, but will not need to know it for your test. Assignment: p170 #1-17, 41, 47, 4

Key Point A function of the form f(x) = ax (where a > 0) is called an exponential function. The function f(x) = 1x is just the constant function f(x) = 1. The function f(x) = ax for a > 1 has a graph which is close to the x-axis for negative x and increases rapidly for positive x. The function f(x) = ax for 0 < a < 1 has a graph which is close to the x-axis for positive 312 cHAptER 5 Exponential Functions and Logarithmic Functions EXAMPLE 1 Consider the relation g given by g = 512, 42, 1-1, 32, 1-2, 026. Graph the relation in blue. Find the inverse and graph it in red. Solution The relation g is shown in blue in the figure at left. The inverse of the relation is 514, 22, 13, -12, 10, -22 View 1.5 Inverse Functions.pdf from MTH 140 at Ryerson University. MTH140 Calculus I 2016-09-03 Objective: ŌĆó Finding the inverse of algebraic functions ŌĆó Finding the Inverse of Exponential The exponential function models exponential growth and has the unique property where the output of the function at a given point is proportional to the rate of change of the function at that point. The inverse of the exponential function is the natural logarithm which represents the opposite of exponential growth, exponential decay Natural exponential function. EXP ( x) returns the natural exponential of x. where e is the base of the natural logarithm, 2.718281828459. (Euler's number). EXP is the inverse function of the LN function. In MedCalc, Euler's number is returned by the E () function

So a logarithm actually gives you the exponent as its answer: (Also see how Exponents, Roots and Logarithms are related.) Working Together. Exponents and Logarithms work well together because they undo each other (so long as the base a is the same): They are Inverse Functions Doing one, then the other, gets you back to where you started A function must be a one-to-one relation if its inverse is to be a function. If a function $$f$$ has an inverse function $$f^{-1}$$, then $$f$$ is said to be invertible. Given the function $$f(x)$$, we determine the inverse $$f^{-1}(x)$$ by: interchanging $$x$$ and $$y$$ in the equation; making $$y$$ the subject of the equation ### Functions Inverse Calculator - Symbola

When graphing a logarithmic function, it can be helpful to remember that the graph will pass through the points (1, 0) and ($$b$$, 1). Finally, we compare the graphs of $$y = b^x$$ and $$y = \log_{b}(x)$$, shown below on the same axes. Because the functions are inverse functions of each other, for every specific ordered pai The definition of inverse says that a function's inverse switches its domain and range. The definition of inverse helps students to understand the unique characteristics of the graphs of invertible functions. The inverse of a function. So the inverse of a function is written f little -1 of x. And careful before we go any further, I want to. In case of the CME approach determining the coefficients is a complex procedure, with a numerical optimization step also involved. However, the resulting $$f_1^n(t)$$ (that is the density function of a concentrated matrix-exponential distribution) is always non-negative, and is very steep (a good approximation of the Dirac delta function)

Exponential functions and their corresponding inverse functions, called logarithmic functions, have the following differentiation formulas: Note that the exponential function f ( x) = e x has the special property that its derivative is the function itself, f ŌĆ▓ ( x) = e x = f ( x ). Example 1: Find f ŌĆ▓ ( x) if. Example 2: Find y ŌĆ▓ if Exponential function, in mathematics, a relation of the form y = a x, with the independent variable x ranging over the entire real number line as the exponent of a positive number a.Probably the most important of the exponential functions is y = e x, sometimes written y = exp (x), in which e (2.7182818) is the base of the natural system of logarithms (ln)

The inverse of an exponential function is called the logarithmic function. If we take log on both sides of the above equation (1) with base 'a' then log_ay = log_a(a^x) or, log_ay = x log_aa [\therefore log_aa^b = b log_aa and log_a a = 1. Exponential function definition is - a mathematical function in which an independent variable appears in one of the exponents ŌĆöcalled also exponential

### Inverse Laplace Transform of Exponential Functio

which function will have a graph that increases? f (x) = 2 (4)^x + 6. examine the graph. decreasing exponential graph with points (0, 4), (-2, 7), (-3, 11) what is the initial value of the function? 4. the general form of an exponential equation is y = ab^x + k. what is the general form of the following equation? y + 1 = (3^x+1)^2 EXP is the inverse of LN(the natural logarithm) of the number. Explanation: The constant number e is an irrational number you know and also one of the most important numbers in whole mathematics. Excel has an exponential & natural log function =EXP(value) which will give us the result of value Exponential function. To use this function, choose Calc > Calculator. Calculates the value e x, where e is the base of the natural log equal to approximately 2.71828 and x is the value that you enter. For example, the exponential of 5 is e 5, which equals about 148.413. Usually, the function y = e x is called the natural exponential function  