Math, asked by aky90466, 1 month ago

1 + Cos 2A = 2 Sin²(90° - A)

Answers

Answered by kush249

0

Step-by-step explanation:

R.H.S=2sin^2(90°-A)

1-cos(180-2A)
1+cos 2A
=L.H.S
proved

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