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i9f A and B are supplementary angles to each other then cos 2 A+cos 2 B+2sinAsinB=

i9f A and  B are supplementary angles to each other then
cosA+cos2B+2sinAsinB=

Grade:8

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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