
Proof for sin and cos
i cannot prove this no matter what i try to do! I need help to be able to pass my test tommorrow.
Prove sin(t)/(1cos(t)) = (1+cos(t)) / sin(t)
I worked with the left terms:
sin(t) / (1cos(t))  Problem
sin(t) / (sin^2(t) + cos^2(t)cos(t))  Pythagorean ID:sin^2(t) + cos^2(t) = 1
what to do next? i already tried seperating all the terms and that doesn't work out. I have a test tomorrow on this stuff and i really need some help.

Multiply the right side by $\displaystyle \frac{1\cos(t)}{1\cos(t)}$.

Do you see the answer? It's not too many steps ahead of the hint I gave you.