Math, asked by annreya6, 8 months ago

if cos (A+B) =alpha cos A cos B +beta sin A sin B find alpha and beta
...need the full explanation urgent!!

Answers

Answered by poojacool4455

1

Answer:

alpha =1 and beta = -1

Step-by-step explanation:

it is on formula

cos (A+B) = cosA*cosB - sinA* sinB

thus on comparing we get

alpha = 1 and beta = -1

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