(1+sin theta)/(1-sin theta)+(1-sin theta)/(1+sin theta)-4tan^(2)theta=2

Prove that (1+sin theta)/(1-sin theta)-(1-sin theta)/(1+sin theta)=4sec theta tan theta

(1-sin theta)/(cos theta)-(cos theta)/(1+sin theta)=2tan theta

1-(sin^(2) theta)/(1+cos theta) + (1+cos theta)/(sin theta) - (sin theta)/(1-cos theta) - (1)/(sec theta)=

" 4."(sin theta)/(1+cos theta)+(1+cos theta)/(sin theta)=(2)/(sin theta)

Prove that (1+sin theta)/(1-sin theta)=tan^2(pi/4+theta/2)

(1)/(1-sin theta)-(1)/(1+sin theta)=(2tan theta)/(cos theta)

(1)/(1-sin theta)-(1)/(1+sin theta)=2sec theta*tan theta

Prove that : (1+ sin theta - cos theta) / (1+ sin theta + cos theta ) = tan (theta/2)

Prove that (1+sin theta-cos theta)/(1+sin theta+cos theta)=tan((theta)/(2))

Prove that : (1+ sin theta - cos theta) / (1+ sin theta + cos theta ) = tan (theta/2)