Evaluate the Integral $\int \sin 4 t \sin \frac { t } { 3 } d t$

question 269

Multiple Choice

Evaluate the integral.
- $\int \sin 4 t \sin \frac { t } { 3 } d t$

• A) \(\frac { 22 } { 3 } \sin \frac { 11 } { 3 } t - \frac { 26 } { 3 } \sin \frac { 13 } { 3 } t + C\)
• B) \(\frac { 3 } { 22 } \cos \frac { 11 } { 3 } t + \frac { 3 } { 26 } \cos \frac { 13 } { 3 } t + C\)
• C) \(\frac { 3 } { 22 } \sin t - \frac { 3 } { 26 } \sin 7 t + C\)
• D) \(\frac { 3 } { 22 } \sin \frac { 11 } { 3 } t - \frac { 3 } { 26 } \sin \frac { 13 } { 3 } t + C\)

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