Math Problem Statement

y = ln(3 + x^2)

Solution

The given equation is:

y=ln(3+x2)y = \ln(3 + x^2)

Let's compute the derivative dydx\frac{dy}{dx} of this function using the chain rule.

The derivative of ln(u)\ln(u) is 1ududx\frac{1}{u} \cdot \frac{du}{dx}, where u=3+x2u = 3 + x^2. Now, let’s differentiate step by step:

  1. Differentiate the logarithmic part ln(3+x2)\ln(3 + x^2): dydx=13+x2ddx(3+x2)\frac{dy}{dx} = \frac{1}{3 + x^2} \cdot \frac{d}{dx}(3 + x^2)

  2. The derivative of 3+x23 + x^2 with respect to xx is 2x2x.

Therefore, the derivative dydx\frac{dy}{dx} becomes: dydx=2x3+x2\frac{dy}{dx} = \frac{2x}{3 + x^2}

This is the result of differentiating the given function.

Would you like further details or have any questions?

Here are some related questions for exploration:

  1. What is the second derivative of this function?
  2. How can you apply this derivative to find critical points?
  3. What is the domain of this function?
  4. Can you plot the graph of this function and its derivative?
  5. How does the function behave as xx \to \infty?

Tip: Always apply the chain rule carefully when differentiating composite functions like logarithms.

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Math Problem Analysis

Mathematical Concepts

Calculus
Differentiation
Logarithmic Functions

Formulas

d/dx [ln(u)] = 1/u * du/dx
d/dx [x^2] = 2x

Theorems

Chain Rule

Suitable Grade Level

Grades 11-12