Question 168313: Solve the following equation: cos(x/3 - pi/4) = 1/2 , x is btw 0 and 2pi
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Solve the following equation: cos(x/3 - pi/4) = 1/2 , x is btw 0 and 2pi
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cos(x/3 - pi/4) = 1/2
(x/3 - pi/4) = pi/6, 5pi/6 (or -pi/6)
x/3 = 5pi/12, pi/12 (5pi/6 + pi/4 times 3 exceeds 2pi)
x = 5pi/4, pi/4
x = 225 degs, 45 degs
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