Math, asked by shaikgousia376, 2 months ago

sin³theta.cos theta + cos³theta.sin theta

Answers

Answered by SinisterX

1

L.H.S. =

→

→

→

→ cos²θ + sin²θ - cosθsinθ + cos²θ + sin²θ + cosθsinθ

→ cos²θ + sin²θ + cos²θ + sin²θ

→ 2cos²θ + 2sin²θ

→ 2(cos²θ + sin²θ)

→ 2(1)

→ 2

= R.H.S.

Hence, proved !!

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