# calculus

posted by
**anon** on
.

Which of the following is a step in evaluating

ç(integer sign) cos^2 5x dx

A.ç(integer sign) 1 + cos 10x / 2 dx

B.ç(integer sign) 1 - cos 10x / 2 dx

C.ç(integer sign) 1 + cos 10x / 20 dx

D.ç(integer sign) 1 - cos 10x / 20 dx

A <<