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The function is .
The general form of sine function is .
Where is amplitude and period .
Compare the function with general form of sine function.
Here amplitude is .
The period is .
Therefore, the sine wave starts from and completes one cycle at and completes two cycles at .
Observe the graphs:
The graph (A) matches to the characteristics of the function .
Hence, the graph (A) is the correct choice.
The graph (A) is the correct choice.
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