Trigonometric substitution

Get the most by viewing this topic in your current grade. Pick your course now.

?
Examples
Lessons
  1. u-Substitution VS. Trigonometric Substitution
    Evaluate:
    1. 19x2xdx \int \frac{1}{\sqrt{9-x^2}}xdx
    2. 19x2dx \int \frac{1}{\sqrt{9-x^2}}dx
  2. Evaluate the integral (Type A: a2x2 \sqrt{a^2-x^2} ).
    1. 1x216x2dx \int \frac{1}{x^2\sqrt{16-x^2}}dx
  3. Evaluate the integral (Type B: a2+x2 \sqrt{a^2+x^2} ).
    1. 1x2x2+9dx \int \frac{1}{x^2\sqrt{x^2+9}}dx