Question

prove the following identity :- cos theta. cosec theta =cot theta​

Answer 1

Step-by-step explanation:

p.t cos theta.cosec theta = cot theta

LHS.,

cos theta.cosec theta

= cos theta × 1/sin theta (cosec theta = 1/sin theta)

= cos theta/sin theta (cos theta/sin theta = cot theta)

= cot theta = RHS

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