Chapter 07 · Integrals
07.09
Trigonometric Substitution
Replace x with a trig function so a square root collapses into a single term.
About 17 minutes
You'll learn to
- →Choose the right trig substitution for each kind of square root
- →Simplify and integrate in θ
- →Convert back to x with a reference triangle
- →Complete the square to reach a standard form