Question

HELPPP
Verify that csc theta cos theta tan theta=1

Answer 1

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Explanation:

`\csc \theta \: \cos \theta \: \tan \theta = 1 \\ \\ LHS = \csc \theta \: \cos \theta \: \tan \theta \: \\ \\ = (1)/( \sin \theta) \: * \cancel{ \cos \theta }\: * \frac{ \sin \theta}{ \cancel{ \cos \theta }} \\ \\ = \frac{1}{ \cancel{ \sin \theta}} \: * \cancel{ \sin \theta} \\ \\ = 1 \\ \\ = RHS \\ \\ hence \: proved`