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Question

The number of points of intersection of the curve y=sin3x with x-axis in the interval (0,π) is

A
1
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B
2
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C
3
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D
4
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Solution

The correct option is B 2
Drawing the graph of y=sin3x,


From the graph, we observed that there are 2 points of intersections (i.e. π/3 and 2π/3) of the curve y=sin3x with x-axis in the interval (0,π).

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