
Home > CALC > Chapter 11 > Lesson 11.1.2 > Problem 11-22
11-22.
Use u-substitution. Let u = sec(x).
cos2(x) – sin2(x) = cos(2x)
Use u-substitution. Let u = sin(2x).
Note: Given dx, x is the only variable.
The integrand is a multiple of an inverse trigonometric function. Which one?