Question

Prove the given :
$prove \: that \: sin \: a \: = \frac{ \sqrt{sec {}^{2} }a - 1 }{sec \: a}$
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Answer 1

$\sf{\(\sin \theta =\frac{1}{\csc \theta }\\\)</p><p></p><p>\(\cos \theta =\frac{1}{\sec \theta }\\\)</p><p></p><p>\(\tan \theta =\frac{1}{\cot \theta }\\\)</p><p></p><p>\(\csc \theta =\frac{1}{\sin \theta }\\\)</p><p></p><p>\(\sec \theta =\frac{1}{\cos \theta }\\\)</p><p></p><p>\(\cot \theta =\frac{1}{\tan \theta }\\\)}$

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