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Câu hỏi: Tính nguyên hàm $\int{\left( x-\sin 2x \right)} \text{d}x$.
A. ${{x}^{2}}+\dfrac{\cos 2x}{2}+C$.
B. $\dfrac{{{x}^{2}}}{2}+\dfrac{\cos 2x}{2}+C$.
C. $\dfrac{{{x}^{2}}}{2}+\cos 2x+C$.
D. $\dfrac{{{x}^{2}}}{2}+\sin x+C$.
A. ${{x}^{2}}+\dfrac{\cos 2x}{2}+C$.
B. $\dfrac{{{x}^{2}}}{2}+\dfrac{\cos 2x}{2}+C$.
C. $\dfrac{{{x}^{2}}}{2}+\cos 2x+C$.
D. $\dfrac{{{x}^{2}}}{2}+\sin x+C$.
$\int{\left( x-\sin 2x \right)} \text{d}x=\dfrac{{{x}^{2}}}{2}+\dfrac{\cos 2x}{2}+C$.
Đáp án B.