Problem 853

Evaluate the indefinite integral by using the given substitution to reduce the integral to standard from.

∫14csc²(7x)cot(7x)dx,

a. u =  cot(7x),

b. u = csc(7x)

 

Solution:-

 

Using u = cot(7x), ∫14csc²(7x)cot(7x)dx = -cot²(7x)+C