Evaluate the Integral $$\int \cos \frac { \theta } { 2 } \cos \frac { \theta } { 5 } d \theta$$

question 384

Multiple Choice

Evaluate the integral.
- $$\int \cos \frac { \theta } { 2 } \cos \frac { \theta } { 5 } d \theta$$

• A) \(\frac { 5 } { 3 } \sin \frac { 3 } { 10 } \theta + \frac { 5 } { 7 } \sin \frac { 7 } { 10 } \theta + C\)
• B) \(\frac { 5 } { 3 } \sin \frac { 3 } { 10 } \theta - \frac { 5 } { 7 } \sin \frac { 7 } { 10 } \theta + C\)
• C) \(\frac { 5 } { 3 } \cos \frac { 3 } { 10 } \theta + \frac { 5 } { 7 } \cos \frac { 7 } { 10 } \theta + C\)
• D) \(\frac { 5 } { 3 } \sin 3 \theta + \frac { 5 } { 7 } \sin 7 \theta + C\)

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