`int_(-pi)^pi(cosa x-sinb x)^2dx`

Evaluate: int_(-pi)^pi(cosa x+sin b x)^2dx

Evaluate: int_(-pi)^pi(cosa x+sin b x)^2dx

int_0^(pi/4) (cos x- sin x) dx + int_(pi/4)^((5pi)/4) (sinx-cosx) dx + int_(2pi)^(pi/4) (cosx- sinx) dx =

int_(-pi)^(pi) (Cos a x - Sin a x)^(2) dx=

int_(-pi)^(pi) x sin x dx = _______.

int_(-pi/2)^(pi/2) sin^(2) x dx

int_(-pi/2)^(pi/2) sin^(7) x dx