Math, asked by jathin22, 9 months ago

what is the answer of this question cos(a+b)+cos(a-b)

Answers

Answered by gautamyadav152004

0

Answer:

cosa+cos b+ cos a - cos b

2cos a

Answered by jas3114

1

Answer:

cos(a+b)+ cos(a-b)= 2cosAcosB

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