Question

prove that: (sinx +siny)/(cosx-cosy) = -cot((x-y)/2)

Answer 1

here the answer

I hope this will help yu

Answer 2

$hey \: mate \\ \\ here \: is \: ur \: ans \\ refer \: to \: the \: attachment$

Hope my ans satisfied u

Be brainly ❤❤

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