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cos^2(45-alpha)+cos^2(15+alpha)-cos^2(15-alpha)=? a.0 b.1

cos^2(45-alpha)+cos^2(15+alpha)-cos^2(15-alpha)=?
a.0
b.1

Grade:11

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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