Math, asked by Dibyabharati20, 6 months ago

cos(A+B) cos(A-B)= ?

Answers

Answered by yoongi82

0

Answer:

cosA cosB = cos(A + B) + cos(A − B)

Answered by snithinmanickam

0

Answer:

cos(a+b)*cos(a-b) = cos^2a - sin^2b tan(x/2) = (1-cosx)/(sinx)

Step-by-step explanation:

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