`(sintheta+costheta)^2+(sintheta-costheta)^2`

Prove that : (sintheta-costheta)/(sintheta+costheta)+(sintheta+costheta)/(sintheta-costheta)=(2)/(2sin^(2)theta-1)

((1+sintheta+i costheta)/(1+sintheta-i costheta))^n is equal to

3(sintheta-costheta)^(4)+6(sintheta+costheta)^(2)+4(sin^(6)theta+cos^(6)theta)=?

if tantheta=(4)/(3) , then the value of (3sintheta+2costheta)/(3sintheta-2costheta) is

If sectheta=(13)/5 , show that (2sintheta-3costheta)/(4sintheta-9costheta)=3

Prove: ((1+sintheta-costheta)/(1+sintheta+costheta))^2=(1-costheta)/(1+costheta)

If int(sintheta-costheta)/((sintheta+costheta)sqrt(sinthetacostheta+sin^(2)thetacos^(2)theta))d theta = "cosec"^(_1)(f(theta))+C , then

Prove that: (1+sintheta-costheta)/(1+sintheta+costheta)=tantheta/2

Prove that: (1+sintheta-costheta)/(1+sintheta+costheta)=tan(theta/2)

(sintheta)/(1-cottheta)+(costheta)/(1-tantheta) is equal to (a) 0 (b) 1 (c) sintheta+costheta (d) sintheta-costheta