Math Problem Statement

Differentiate the function f(x) = sin(5 ln(x)).

Solution

Let's solve this problem by differentiating the function f(x)=sin(5ln(x))f(x) = \sin(5 \ln(x)) with respect to xx.

Solution

  1. Identify the outer and inner functions:

    • The outer function is sin(u)\sin(u) where u=5ln(x)u = 5 \ln(x).
    • The inner function is u=5ln(x)u = 5 \ln(x).
  2. Apply the chain rule: According to the chain rule: f(x)=cos(5ln(x))ddx[5ln(x)]f'(x) = \cos(5 \ln(x)) \cdot \frac{d}{dx}[5 \ln(x)]

  3. Differentiate the inner function 5ln(x)5 \ln(x): ddx[5ln(x)]=51x=5x\frac{d}{dx}[5 \ln(x)] = 5 \cdot \frac{1}{x} = \frac{5}{x}

  4. Combine the results: Substitute back into the derivative: f(x)=cos(5ln(x))5xf'(x) = \cos(5 \ln(x)) \cdot \frac{5}{x}

  5. Final Answer: f(x)=5cos(5ln(x))xf'(x) = \frac{5 \cos(5 \ln(x))}{x}


So, the derivative of f(x)=sin(5ln(x))f(x) = \sin(5 \ln(x)) is: f(x)=5cos(5ln(x))xf'(x) = \frac{5 \cos(5 \ln(x))}{x}


Would you like further details on the steps, or do you have any additional questions?

Here are some related questions to practice:

  1. Differentiate g(x)=cos(3ln(x))g(x) = \cos(3 \ln(x)).
  2. Differentiate h(x)=e2ln(x)h(x) = e^{2 \ln(x)}.
  3. Find the second derivative of f(x)=sin(5ln(x))f(x) = \sin(5 \ln(x)).
  4. Differentiate k(x)=tan(4ln(x))k(x) = \tan(4 \ln(x)).
  5. Solve f(x)=0f'(x) = 0 for f(x)=sin(5ln(x))f(x) = \sin(5 \ln(x)).

Tip: For functions involving ln(x)\ln(x) inside trigonometric or exponential functions, the chain rule is essential to handle the differentiation.

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Math Problem Analysis

Mathematical Concepts

Differentiation
Chain Rule
Trigonometric Functions
Logarithmic Functions

Formulas

f'(x) = cos(5 ln(x)) * d/dx[5 ln(x)]
d/dx[ln(x)] = 1/x
f'(x) = 5 cos(5 ln(x)) / x

Theorems

Chain Rule

Suitable Grade Level

Grades 11-12