Math, asked by jattraman4040, 5 months ago

Prove the following: 6. cos(π\4 -x)cos(π\4 -y) - sin(π\4 - x)sin(π\4 - y) =sin(x+y)

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Answered by dmallika361

0

Answer:

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Step-by-step explanation:

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Answered by Yukta333

2

Hope it is useful for you

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