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cos 2 (A-B)+cos 2 B-2cos(A-B)cosAcosB

cos2(A-B)+cos2B-2cos(A-B)cosAcosB

Grade:11

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
8 years ago
Dear Student, You questions seems to be incomplete. Please write the complete question. Thanks.

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