Question

Sin(A+B)=? FORMULA

Answer 1

Two of the more important formulas we need to learn in trig are the sum and difference formula. That's exactly what you seem to be asking for here. What's your primary reference source? Have you a textbook? Have you looked up "sum and difference formulas" on the internet?

Answer 2

igot 1 sin(A-B)=SinACosb-CosASinB =D

Answer 3

IS this mean i just have to replace + on -

Answer 4

@mathmale