Question

(sinƟ+cosƟ)² + (sinƟ – cosƟ)²​

Answer 1

Answer:

2(sin²α+cos²α)

Step-by-step explanation:

(sin$\alpha$+cosα)²+(sinα-cosα)²

sin²α+cos²α+2sinαcosα+sin²α+cos²α-2sinαcosα

2sin²α+2cos²α

2(sin²α+cos²α)

Answer 2

Answer:

2

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