how to prove that
cot A/(1-tanA) + tanA/(1-cotA) = 1 + secA cosecA

I know there are some people in the forums with a degree in mathematics. Hopefully you all can explain to me how to solve it.
Posted on 2003-04-10 07:35:16 by roticv
Elementary calculations (well, it was more excercise from TeX than from the math...).
Posted on 2003-04-10 13:34:36 by Tomasz Grysztar
Thanks. But the question really got me thinking for some hours.
Posted on 2003-04-10 21:27:05 by roticv