Tính \(\int\limits {\left( {x - \sin 2x} \right)dx} \)




A.\(\frac{{{x^2}}}{2} + \sin x + C\)
B.\(\frac{{{x^2}}}{2} + c{\rm{os}}2x + C\)
C.\({x^2} + \frac{1}{2}c{\rm{os}}2x + C\)
D.\(\frac{{{x^2}}}{2} + \frac{1}{2}c{\rm{os}}2x + C\)

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