int((1-cos theta)^((2)/(7)))/((1+cos theta)^((9)/(7)))d theta" is "

The value of the integral int((1-cos theta)^((2)/(7)))/((1+cos theta)^((9)/(7)))dth eta is(7)/(11)(tan(theta)/(2))^((11)/(7))+C(b)(7)/(11)((cos theta)/(2))^((11)/(7))+C(7)/(11)(s int h(eta)/(2))^((11)/(7))+C(d) none of these

int (d ( cos theta))/(sqrt(1-cos^(2) theta))

int (d ( cos theta))/(sqrt(1-cos^(2) theta))

int (sin^(2)theta d theta)/((1 + cos theta)^(2))

int (sin ^ (2) theta) / ((1 + cos theta) ^ (2)) d theta

Evaluate int_(0)^(pi) sin^(3) theta(1+2 cos theta)(1+ cos theta)^(2) d theta

" 7."int(sintheta)/((1+cos theta)^(2))d theta

int(costheta-cos2theta)/(1-cos theta)d theta=

Prove that: cos theta(cos theta)/(2)-cos3 theta(cos(9 theta))/(2)=sin7 theta s in8 theta