The true statement for the function f(x) = sin 2x - x,
where - \(\frac{{\rm{\pi }}}{{\rm{2}}} \le {\rm{x}} \le \frac{{\rm{\pi }}}{{\rm{2}}}\) is:
1
maxima at x = π/3
2
minima at x = π/6
3
minimum value is \(\left( {\frac{{\rm{\pi }}}{6} - \frac{{\sqrt 3 }}{2}} \right)\)
4
maximum value is \(\left( {\frac{{\rm{\pi }}}{6} + \frac{{\sqrt 3 }}{2}} \right)\)