Copyright © Cengage Learning. All rights reserved. Logarithmic, Exponential, and Other Transcendental Functions.

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Copyright © Cengage Learning. All rights reserved. Logarithmic, Exponential, and Other Transcendental Functions

Exponential Functions: Differentiation and Integration Copyright © Cengage Learning. All rights reserved.

3 Example 1 – Solving Exponential Equations Solve 7 = e x + 1. Solution: You can convert from exponential form to logarithmic form by taking the natural logarithm of each side of the equation. So, the solution is –1 + ln 7 ≈ – You can check this solution as shown.

4 Example 1 – Solving Exponential Equations Solve 7 = e x + 1. Solution: You can convert from exponential form to logarithmic form by taking the natural logarithm of each side of the equation. So, the solution is –1 + ln 7 ≈ –0.946.

5 Example 1 – Solution (cont) You can check this solution as shown.

6 The Natural Exponential Function The familiar rules for operating with rational exponents can be extended to the natural exponential function, as shown in the next theorem.

7 An inverse function f –1 shares many properties with f. So, the natural exponential function inherits the following properties from the natural logarithmic function. The Natural Exponential Function

8

9 Derivatives of Exponential Functions

10 One of the most intriguing (and useful) characteristics of the natural exponential function is that it is its own derivative. In other words, it is a solution to the differential equation y' = y. This result is stated in the next theorem. Derivatives of Exponential Functions

11 Example 3 – Differentiating Exponential Functions Find the derivative of each function. a. y = e 2x-1 b. y = e -3/x Solution: