Math, asked by aditchheda15, 11 months ago

2 sinB + 4 cos(a+b)sin a sin B+cos 2(a+b) =
(C) cos 2a
(A) sin 2a
(B) cos 2B
(D) sin 2B

Answers

Answered by rakhithakur

2

Answer:

Step-by-step explanation:

1-2sin^2A= 1-sin^2A -sin^2A

= cos2A-sin2A= COS2A

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