SOLUTION: Prove that: {{{(1^""^"" + cos(A^""))^2/(sin^2(A)^"") = (1 + cos(A^"")^""^"")/(1 - cos(A^"")^"")}}}

Algebra ->  Trigonometry-basics -> SOLUTION: Prove that: {{{(1^""^"" + cos(A^""))^2/(sin^2(A)^"") = (1 + cos(A^"")^""^"")/(1 - cos(A^"")^"")}}}      Log On


   

Question 1119007: Prove that:
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!


Multiply the right side by the conjugate of the bottom
over itself, which just equal 1. That is, we multiply the
roght side by %281+%2B+cos%28A%5E%22%22%29%5E%22%22%5E%22%22%29%2F%281+%2B+cos%28A%5E%22%22%29%5E%22%22%29







Edwin