Math, asked by priyangshu7, 1 year ago

cos^2 π/8 + cos^2 3π/8 + cos^2 5π/8 + cos^2 7π/8 = ????

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Answered by srilakshmi23

4

hope it helps you...................

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priyangshu7: thanx

srilakshmi23: welcome

priyangshu7: love you

srilakshmi23: tq for mark

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