Math, asked by jnhviwankhade21, 3 months ago

cos(81°+thita) = sin(9°Thita)

Answers

Answered by kodekarhetvisha

9

Answer:

L.H.S = cos(81°+ θ)

= cos [90°-(9°-θ)]

= sin (9°-θ)

= R.H.S.

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