Math Problem Statement

Let \( f(x) = e^{e^x} \). Find the first and second derivatives of \( f(x) \).

Solution

To solve this, we need to find the derivatives of the function f(x)=eexf(x) = e^{e^x}.

Step 1: First Derivative, f(x)f'(x)

  1. Using the chain rule, the derivative of f(x)=eexf(x) = e^{e^x} with respect to xx is: f(x)=eexddx(ex)f'(x) = e^{e^x} \cdot \frac{d}{dx}(e^x)
  2. Since ddx(ex)=ex\frac{d}{dx}(e^x) = e^x, we get: f(x)=eexexf'(x) = e^{e^x} \cdot e^x
  3. Thus, the first derivative is: f(x)=eexexf'(x) = e^{e^x} \cdot e^x

Step 2: Second Derivative, f(x)f''(x)

To find f(x)f''(x), we differentiate f(x)=eexexf'(x) = e^{e^x} \cdot e^x with respect to xx.

  1. Applying the product rule, we have: f(x)=ddx(eex)ex+eexddx(ex)f''(x) = \frac{d}{dx}\left(e^{e^x}\right) \cdot e^x + e^{e^x} \cdot \frac{d}{dx}(e^x)
  2. We already know ddx(ex)=ex\frac{d}{dx}(e^x) = e^x, and from the first derivative, ddx(eex)=eexex\frac{d}{dx}(e^{e^x}) = e^{e^x} \cdot e^x. So we get: f(x)=(eexex)ex+eexexf''(x) = \left(e^{e^x} \cdot e^x\right) \cdot e^x + e^{e^x} \cdot e^x
  3. Simplifying this, we obtain: f(x)=eexe2x+eexexf''(x) = e^{e^x} \cdot e^{2x} + e^{e^x} \cdot e^x
  4. Factoring out eexexe^{e^x} \cdot e^x, we get: f(x)=eexex(ex+1)f''(x) = e^{e^x} \cdot e^x \cdot (e^x + 1)

So, the second derivative is: f(x)=eexex(ex+1)f''(x) = e^{e^x} \cdot e^x \cdot (e^x + 1)

Let me know if you'd like more details on these steps or have any questions!


Related Questions

  1. How would you find the third derivative of f(x)=eexf(x) = e^{e^x}?
  2. What is the general formula for the nn-th derivative of eexe^{e^x}?
  3. How does the chain rule apply when differentiating functions of functions?
  4. How do exponential functions behave under differentiation?
  5. What is the importance of the product rule in finding higher-order derivatives?

Tip

When differentiating complex functions, applying the chain rule and product rule correctly helps avoid mistakes, especially with functions within exponentials.

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Math Problem Analysis

Mathematical Concepts

Calculus
Differentiation
Chain Rule
Product Rule

Formulas

First derivative using the chain rule: \( f'(x) = e^{e^x} \cdot e^x \)
Second derivative using product rule and chain rule: \( f''(x) = e^{e^x} \cdot e^x \cdot (e^x + 1) \)

Theorems

Chain Rule
Product Rule

Suitable Grade Level

Grade 12 or College Level Calculus