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marasofia1616
 2 years ago
Verify the identity. sin (x + y)  sin (x  y) = 2 cos x sin y
marasofia1616
 2 years ago
Verify the identity. sin (x + y)  sin (x  y) = 2 cos x sin y

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hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1do you know the formula for sin(A+B) =... ?

Yahoo!
 2 years ago
Best ResponseYou've already chosen the best response.1Sin(a+b) = sin a . cos b + Cos a. Sin b sin (ab) = sin a . cos b  Cos a. Sin b

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0Yeah, that's pretty much it ^
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