Math, asked by madhavgoyal9038, 4 months ago

prove that sin(90-a) × sin a / tan a - cos2a = 0

Answers

Answered by manjushahanwate9678

2

Step-by-step explanation:

.. sry for answering dear I don't know the answer sry

Answered by bhumikabv2004

0

Step-by-step explanation:

LHS = sin (90 - a) × sin a / tan a - cos 2a

= cos a × sin a / tan a - cos2a

hey check once if the question is proper. I think this term is not proper => -cos2a

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