Listen NCERT Audio Books - Kitabein Ab Bolengi
Evaluate the integrals using substitution.
Given:
Let cos x = t
⇒ -sin xdx = dt
⇒ sin xdx = -dt
When x = 0, t = 1 and when x = π /2, t = 0
because,
The value of the integral is
If then f'(x) is