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prove that tan(x+y)/cot(x-y)=sin²x-sin²y/cos²x-sin²y

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prove that tan(x+y)/cot(x-y)=sin²x-sin²y/cos²x-sin²y
  • 1 answers

Ranjeet Kumar 4 years, 10 months ago

We have sin (x + y)cos (x -- y) / cos (x + y)sin (x -- y) ==> {2sin(x + y)cos(x -- y)} /{2cos(x + y)sin(x -- y)} ==> { sin 2x + sin 2y} /{sin 2x --}
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