Math, asked by vijaysinghthakur629, 19 days ago

find the solution....

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Answered by Subhajit7523690

2

Answer:

Cos (a+b) = AC - BC = AC - FD

cos(a) cos(b) - sin(a) sin(b)

Sin(a+b) = BF + FE = CA + FE

sin(a) cos(b) + cos(a) - sin(b)

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