Find $\int x \cos 2 x d x$
A) $\frac{1}{2} x \sin 2 x+\frac{1}{4} \cos 2 x+C$

question 67

Multiple Choice

Find $\int x \cos 2 x d x$ .

• A) \(\frac{1}{2} x \sin 2 x+\frac{1}{4} \cos 2 x+C\)
• B) \(\frac{1}{2} x \sin 2 x-\frac{1}{2} \cos 2 x+C\)
• C) \(-\frac{x^{2}}{8} \sin 2 x+C\)
• D) \(\frac{x^{2}}{4} \sin 2 x+C\)

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