## anonymous 5 years ago prove tan^2(x/2+pi/4) = (1+sinx)/(1-sinx)

I'll make it easier on you :) Consider : $\theta = (2x + \pi/4)$ and you'll get : $= \tan^2 \theta$ simplify this one and in the end plug in the value of theta :) Give it a one more try ^_^