int_(0)^( pi)cos^(3)xdx

int_(0)^( pi)cos^(5)xdx

int_(0)^( pi/2)cos^(3)xdx

[int_(0)^( pi/2)cos^(3)xdx=],[(-(1)/(3))/((1)/(3))],[(2)/(3)]

Evaluate the following definite integral: int_(0)^( pi/2)cos^(3)xdx

int_(0)^(pi)cos^(5)xdx=0

int_(0)^(2 pi)cos^(7)xdx

int_(0)^(2 pi)cos^(4)xdx

int_(0)^(2 pi)cos^(5)xdx=

" 7."int_(0)^( pi)cos xdx

Evaluation of definite integrals by subsitiution and properties of its : int_(0)^(pi)cos^(3)x.sin^(4)xdx=..........