Question

If A + B = 90° , prove that..
$\sqrt{ \frac{tan \: a \:. \tan \: b \: + tan \: a \:. \: cot \: b}{sin \: a \: . \: sec \: b} - \frac{ {sin}^{2} b}{ {cos}^{2} a} } = tan \: a$

Answer 1

Good kind of question

Answer 2

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The Question is Give below

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The Answer in the Attachment

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