SOLUTION: Find the exact value of the expression as a single fraction. Sin(pi/4)cos(0)-sin(pi/6)cos(pi)

Algebra ->  Trigonometry-basics -> SOLUTION: Find the exact value of the expression as a single fraction. Sin(pi/4)cos(0)-sin(pi/6)cos(pi)      Log On


   

Question 1091650: Find the exact value of the expression as a single fraction.
Sin(pi/4)cos(0)-sin(pi/6)cos(pi)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Sin(pi/4)cos(0)-sin(pi/6)cos(pi)
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sin(pi/4) = sqrt(2)/2
cos(0) = 1
sin(pi/6) = 1/2
cos(pi) = -1
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You have to know those.