`int_(2pi)^((3pi)/2)cosx dx`

int_(-pi/2)^(pi/2)cosx dx

What is geometrical significance of (i) int_(0)^(pi) |cosx| dx , (ii) int_(0)^((3pi)/(2)) cosx dx

int_(pi/3)^(pi/2) sinx dx

If int_(0)^((pi)/2)log(cosx)dx=-(pi)/2log2 , then int_(0)^((pi)/2)log(cosecx)dx=

int_(0)^(pi//2)x cosx " " dx =

int_(0)^(pi//4)(cosx-sinx)dx+int_(pi//4)^(5pi//4)(sinx-cosx)dx+int_(2pi)^(pi//4)(cosx-sinx)dx is equal to

Evaluate int_(0)^(2pi)|cosx|dx

int_(pi//8)^(3pi//8)(cosx)/((cosx+sinx))dx=(pi)/(8)

If int_(0)^(pi//2) log(cosx) dx=pi/2 log (1/2), then int_(0) ^(pi//2) log (sec x ) dx =