SOLUTION: Use Sin(A-B)=cos(1/2 π-(A-B))=cos((1/2 π-A)+B) to derive the formula for sin(A-B)

Algebra.Com
Question 1163683: Use
Sin(A-B)=cos(1/2 π-(A-B))=cos((1/2 π-A)+B) to derive the formula for sin(A-B)

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Use
Sin(A-B)=cos(1/2 π-(A-B))=cos((1/2 π-A)+B) to derive the formula for sin(A-B)
------------
Ambiguous.
Add parentheses.

RELATED QUESTIONS

1.Derive a formula for cos 2A with aid of cos (A + B). 2.Prove that 2 tan x + 2 cot x =... (answered by Edwin McCravy)
An important trigonometric identity is cos(a + b) = cos a cos b − sin a sin b,... (answered by Alan3354)
Prove that: (sin a cos b+cos a sin b)^2+(cos a cos b-sin a sin b)^2 =... (answered by solver91311)
State the formula for sin(a + b) and use it to show sin(a + 3π/2) = −... (answered by stanbon,lwsshak3)
State the formula for sin(a+b) and use it to show sin(a+Pi/2)=cos... (answered by ewatrrr)
Derive the half angle formula for sin( u/2 ) by following the steps below. (a) Use the... (answered by richard1234)
Hi, I have the following answer;... (answered by ewatrrr)
After transformations, the expression sin (A + B)sin (A - B) can be proved to be equal... (answered by ikleyn,math_tutor2020)
sin(A+B) = sin A cos B + cos A sin B cos(A+B) =... (answered by vleith)