Math, asked by Bishwanath, 1 year ago

How sin 2(π/2+π/8)=cos 2(π/8)

Answers

Answered by mysticd
0
Hi ,

we know that ,

sin ( π/ 2 + A ) = cos A


LHS = Sin² ( π /2 + π /8 )

= cos² π/8

I hope this helps you.

:)
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