SOLUTION: sin(Pi/4-B)= Sin(45-B)= Sin(45)*Cos(B)-Cos(45)*Sin(B) after this point i am completely lost. Please and thank you.

Algebra ->  Trigonometry-basics -> SOLUTION: sin(Pi/4-B)= Sin(45-B)= Sin(45)*Cos(B)-Cos(45)*Sin(B) after this point i am completely lost. Please and thank you.      Log On


   



Question 999103: sin(Pi/4-B)=
Sin(45-B)=
Sin(45)*Cos(B)-Cos(45)*Sin(B)
after this point i am completely lost. Please and thank you.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
sin(Pi/4-B)=
Sin(45-B)=
Sin(45)*Cos(B)-Cos(45)*Sin(B)
-----------
You didn't say what you want to do, but
sin(45) = cos(45) = sqrt(2)/2
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--> %28sqrt%282%29%2F2%29%2A%28cos%28B%29+-+sin%28B%29%29