Math Problem Statement

Soit la fonction f définie ci-dessous : f : x -> e^(2x - 7). Déterminer la dérivée de f. On admettra qu'elle est dérivable sur R.

Solution

The given function is f:xe2x7f : x \mapsto e^{2x - 7}, and we are asked to find its derivative.

To differentiate this function, we apply the chain rule, which states that the derivative of eg(x)e^{g(x)} is eg(x)g(x)e^{g(x)} \cdot g'(x), where g(x)g(x) is the inner function.

In our case, g(x)=2x7g(x) = 2x - 7, so let's compute the derivative:

  1. The derivative of g(x)=2x7g(x) = 2x - 7 is g(x)=2g'(x) = 2.

Now, applying the chain rule: f(x)=e2x72=2e2x7.f'(x) = e^{2x - 7} \cdot 2 = 2e^{2x - 7}.

Thus, the derivative of the function is: f(x)=2e2x7.f'(x) = 2e^{2x - 7}.

Would you like a more detailed explanation or have any further questions?

Here are 5 related questions you might find helpful:

  1. How do you apply the chain rule to more complex functions?
  2. What is the derivative of other exponential functions like ex2e^{x^2}?
  3. How can the chain rule be used in multivariable calculus?
  4. What is the geometric interpretation of the derivative of an exponential function?
  5. How does the constant ee influence the behavior of the function and its derivative?

Tip: Always remember to first identify the inner function when applying the chain rule.

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Math Problem Analysis

Mathematical Concepts

Differentiation
Exponential Functions
Chain Rule

Formulas

d/dx(e^(g(x))) = e^(g(x)) * g'(x)

Theorems

Chain Rule

Suitable Grade Level

Grades 10-12