Math, asked by sagarkanekar2004, 1 year ago

What is the simplified form of cos(A-B)/cos(A+B) =

Answers

Answered by saswatibhukta

1

Answer:

Step-by-step explanation:cos(A-B)=cosAcosB+sinAsinB.....(I)

Cos(A+B)=cosAcosB-sin AsinB....(ii)

There fore, cosA -B/cosA+B=2cosAcosBsinAsinB/cos^2Acos^2B-sin^2Asin^2B is the simplified form

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