Use Integration by Parts to Find the Indefinite Integral $\int x \cos 2 x d x$

question 3

Multiple Choice

Use integration by parts to find the indefinite integral. $\int x \cos 2 x d x$

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

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