Math, asked by jeevankumara, 20 days ago

Show that ( sin θ + cos θ ) 2 = 1 + 2 sin θ cos θ.

Answers

Answered by lalith2004ky

1

Answer:

LHS: (sin θ + cos θ)²

= sin²θ + cos²θ + 2 sin θ cos θ

= (sin²θ + cos²θ) + 2 sin θ cos θ

= 1 + 2 sin θ cos θ

= RHS

Hence, proved!

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