A) \[y=\sin \left( 2\pi t+\frac{\pi }{3} \right)+\]\[2\sin \left( 3\pi t+\frac{\pi }{4} \right)+3\sin 5\pi t\]
B) \[y=\sin \frac{\pi }{3}t+\sin \frac{\pi }{4}t\]
C) \[y=\sin t+\cos 2t\]
D) None of these
Correct Answer: C
Solution :
The period of the function in option is 2. The period of the function in option is 24. The period of the function in option is \[2\pi \].
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