|3|int_(0)^(1)cos^(3)xdx=?

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

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

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

Prove that, int_(0)^(pi)cos^(3)xdx=0

Evaluate the following integral: int_(0)^(1)cos^(-1)xdx

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

int e^(-3x)cos^(3)xdx

int e^(-3x)cos^(3)xdx

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

I_(1)=int_(0)^((pi)/(2))(sin x-cos x)/(1+sin x cos x)dx,I_(2)=int_(0)^(2 pi)cos^(6)xdx,I_(3)=int_((pi)/(2))^((pi)/(2))sin^(3)xdx,I_(4)=int_(0)^(1)1n((1)/(x)-1)dx. Then I_(1)=I_(3)=I_(4)=0,I_(1)!=0I_(1)=I_(3)=0,I_(4)!=0I_(1)=I_(2)=0,I_(4)!=0I_(1)=I_(2)=I_(3)=0,I_(4)!=0