Math, asked by bhumikhokhani6110, 1 year ago

If cos A+cos B=0=sin A+sin B, then cos 2A+cos 2B is equal to-

A) -2sin(A+B)

B) -2cos(A+B)

C) 2sin(A+B)

D) 2cos(A+B)

Answers

Answered by malagurung

0

answer is option c 2 sin

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