Question

सिद्ध कीजिए कि (cosec² θ – 1) sin² θ = cos² θ

Answer 1

Answer:

Step-by-step explanation:

LHS=(cosec square theta -1) sin square theta

=(cot square theta ) sin square theta [cosec square theta -1= cot square theta ]

=cos square theta / sin square theta ×sin square theta

=by cancellation "sin square theta "

=cos square theta =RHS

Therefore LHS=RHS

Therefore (cosec square theta -1) sin square theta = cos square theta is proved.