Question
Question: \(\int _ { - \pi } ^ { \pi } \frac { \cos ^ { 2 } \mathrm { x } } { 1 + \mathrm { a } ^ { \mathrm { ...
∫−ππ1+axcos2xdx , (a > 0) =
A
p
B
ap
C
2π
D
2p
Answer
2π
Explanation
Solution
use= ∫0af(x)+f(−x)dx
∫−ππ1+axcos2xdx , (a > 0) =
p
ap
2π
2p
2π
use= ∫0af(x)+f(−x)dx