Question

Can you help me with this one?

What is the formula for sinA+sinB in Sum of two functions ?

Answer 1

in(A+B)=sin A cos B + cos A sin B
sin(A-B)=sin A cos B - cos A sin B
cos(A+B)=cos A cos B - sin A sin B
cos(A-B)=cos A cos B + sin A sin B

Answer 2

\[\large\text{Sum & Difference Formulas}\]
\[\sin(u ± v) = \sin (u) \cos (v) ± \cos (u) \sin (v)\]
\[\cos(u ± v) = \cos u \cos v ∓ \sin u \sin v\]
\[\tan(u±v)= \frac{\tan u±\tan v }{1∓\tan u\tan v}\]

Answer 3

wow!!! Thank you for replying!!!!!! :D

Answer 4

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