The criticial points are (pi), (pi/3), and (5pi/3).
Am I correct?
Is that the first derivative there, or is it not differentiated?
Yes, the first derivative.
Given that [itex]sin(2x) = 2sin(x)cos(x)[/itex], you could say the following:
Using the zero product property, what are the solutions to that?
I just want to know if my critical points are correct or not.
No, they are not
Is pi/2 a point instead of pi?
The derivative is sin2x-sinx
In that case you were right.
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