Math, asked by sneharoy49, 7 months ago

how to solve this?
$\cos( \alpha + \beta )$

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Answers

Answered by sanjibbiswasgo2020

1

Answer:

cos (alpha +Bita )sutre vangte hobe

Answered by ketan2mehra

1

Answer:

just use the formula - 2sinA * cosB=sin(A+B)+sin(A-B)

in the right hand side(RHS).

and you will get your answer

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