int_(0)^( pi/2)(dx)/(1+sin x)

int_(0)^( pi)(dx)/(1+sin x)

" 2."int_(0)^( pi)(x)/(1+sin x)dx

int_(0)^(pi//2) (dx)/(1 + sin^(2)x)=

The maximum and minimum values of the int_(0)^( pi/2)(dx)/(1+sin^(2)x) are:

int_(0)^(1)(tan^(-1)x)/(x)dx is equals to int_(0)^((pi)/(2))(sin x)/(x)dx(b)int_(0)^((pi)/(2))(x)/(sin x)dx(1)/(2)int_(0)^((pi)/(2))(sin x)/(x)dx(d)(1)/(2)int_(0)^((pi)/(2))(x)/(sin x)dx

Find the mistake of the following evaluation of the integral I=int_(0)^( pi)(dx)/(1+2sin^(2)x)I=int_(0)^( pi)(dx)/(cos^(2)x+3sin^(2)x)=int_(0)^( pi)(sec^(2)xdx)/(1+3tan^(2)x)=(1)/(sqrt(3))[tan^(-1)(sqrt(3)tan x)]_(0)^( pi)=0

int_(0)^( pi)(x)/(1+sin^(2)x)dx

int_(0)^( pi)(x)/(1+sin^(2)x)*dx

int_(0)^( pi)(x)/(1+sin^(2)x)*dx