this derived from by using
in never negative, so the sign of the fractional expression depends only on the sign of
Is there any way to prove the following identity:
without drawing a diagram? I know that it is a basic trig identity, but I don't know how to prove it by manipulating hte formulas.
Introduce into the equation and you should solve your problem
In the time I took to write this I was beaten by 2 other forum users
I really need to take typing classes.
On the other hand, at least I provided a different method