How would you verify this problem?

Guest Mar 9, 2017

I think this is supposed to be :


[sin x cos y  + cos x sin y] / [ cos x cos y- sin x sin y]  =  [cot x + cot y]/ [cot x cot y - 1]


Work on the left side dividing every term by sin x sin y 


[ cot y  + cot x] / [ cot x cot y - 1]      and this equals the right side



cool cool cool

CPhill  Mar 9, 2017

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