Find all solutions in the interval [0,2pi).
cos2x + sinx=1
1
Expert's answer
2012-01-17T12:44:22-0500
we know that 1-cos(2x)=2sin^2(x) so cos(2x)+sin(x)=1 we can rewrite as sin(x)=2sin^2(x) so sin(x)=0 or sin(x)=1/2 and we have from first x=0, x=pi from second x=pi/6 , x=5*pi/6
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