Question 743896: Solve for exact solutions over [0,2pie) invterval
sec(x/2)=cos(x/2)
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Solve for exact solutions over [0,2pie) invterval
sec(x/2)=cos(x/2)
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Use the Greek letter pi, not the dessert, pie.
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sec(x/2)=cos(x/2)
1/cos(x/2)=cos(x/2)
cos^2(x/2) = 1
cos(x/2) = -1,1
x/2 = 0, pi
x = 0, 2pi
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