Math, asked by httpsgautham, 11 months ago

Prove it ? pls help​

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Answered by jiyasharma77
0

Answer:

cos² + sin ² (cos²-sin²)

= cos²-sin²

1-sin²-sin²

-sin²-sin²+1

sin²+sin²-1

2sin²-1

I hope it helps you

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