Evaluate the Integral $\int \sin 8 t \sin 5 \mathrm { tdt }$

question 105

Multiple Choice

Evaluate the integral.
- $\int \sin 8 t \sin 5 \mathrm { tdt }$

• A) \(\frac { 1 } { 6 } \sin 8 t - \frac { 1 } { 26 } \sin 5 t + C\)
• B) \(\frac { 1 } { 6 } \sin 3 t - \frac { 1 } { 26 } \cos 13 t + C\)
• C) \(\frac { 1 } { 6 } \sin 3 t + \frac { 1 } { 26 } \sin 13 t + C\)
• D) \(\frac { 1 } { 6 } \sin 3 t - \frac { 1 } { 26 } \sin 13 t + C\)

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