Skip to main contentSkip to solution

The value of ∫−44log⁡e(1−x1+x)dx\int_{-4}^{4} \log_e \left( \frac{1-x}{1+x} \right) dx is equal to

Solution

✅ Correct Option: 3

Let f(x)=log⁡e1−x1+xf(x) = \log_e \frac{1-x}{1+x}.

f(−x)=log⁡e1+x1−x=−f(x)f(-x) = \log_e \frac{1+x}{1-x} = -f(x), so ff is odd.

Integral of an odd function over a symmetric interval is zero.

Keyboard Shortcuts

  • Left arrow: Previous question
  • Right arrow: Next question
  • S key: Jump to solution
  • Q key: Jump to question