" Wample "44" Evaluate "int_(0)^( pi)(xdx)/(a^(2)cos^(2)x+b^(2)sin^(2)x)

Evaluate int_(0)^( pi)(xdx)/(1+cos^(2)x)

int_(0)^(pi)(xdx)/(a^(2)cos^(2)x+b^(2)sin^(2)x)=(pi^(2))/(2ab)

Evaluate: int_(0)^( pi)(pi-x)/(cos^(2)x+b^(2)sin^(2)x)dx

Evaluate int_(0)^( pi)(sin xdx)/(4-sin^(2)x)=

Evalute : int_0^(pi)(xdx)/(a^2cos^2x+b^2sin^2x)

Evaluate int_(0)^(2 pi)sin^(2)x cos^(4)xdx=

Prove that int_(0)^(a) f(x) dx = int_(0)^(a) f(a - x)dx and hence evaluate the following: (f) int_(0)^(pi)(xdx)/(a^(2)cos^(2)x + b^(2)sin^(2)x)

Evaluate: int_(0)^( pi/2)x sin xdx

Evaluate: int_(0)^( pi/2)x sin xdx