SOLUTION: Prove the identify : cosM cosN - sin M sin N / sin M cos N + sin N cos M = cot M cot N - 1 / cot M +cot N

Algebra ->  Trigonometry-basics -> SOLUTION: Prove the identify : cosM cosN - sin M sin N / sin M cos N + sin N cos M = cot M cot N - 1 / cot M +cot N       Log On


   

Question 1011253: Prove the identify : cosM cosN - sin M sin N / sin M cos N + sin N cos M = cot M cot N - 1 / cot M +cot N
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Prove the identify [sic] : cosM cosN - sin M sin N / sin M cos N + sin N cos M = cot M cot N - 1 / cot M +cot N
==================
Add some parentheses to clarify what's the numerator and the denominator.