Math, asked by Hshxicu, 1 year ago

Solve 10th question. PLEASE

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Answered by Bhuvan983

1

Step-by-step explanation:

Sin( 7© + 9) = cos 2©

But cos 2© = sin (90-2©).. [ Complementary angles]

Therefore.. 7© +9= 90-2©

9©=81

© = 9...

Hope this helps...

Bhuvan...

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