SOLUTION: Prove that (cot y - cot x) / (cot x + cot y) = sin (x-y) / (sin x + y)
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Question 969954: Prove that (cot y - cot x) / (cot x + cot y) = sin (x-y) / (sin x + y)
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Prove that (cot y - cot x) / (cot x + cot y) = sin (x-y) / (sin x + y)
start with left side
..
note: denominators (sinxsiny) cancel out
..
note: terms rearranged
verified: left side=right side
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