Math, asked by januindhushiva, 11 months ago

what is cos(A-B)=?

what is cos(A+B)=?

Answers

Answered by Anonymous

4

cos (A-B) = cos A cos B- sinA sinB

cos (A-B) = cos A cos B + sinA sinB

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Answered by sharad31

2

Answer:

cos (A-B)=cosAcosB+sinAsinB

cos (A+B)=cosAcosB-sinAsinB

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