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Graph of Trigonometric Ratios

The number of...

Question

The number of points of intersection of the curve $y = sin 3 x$ 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 $y = sin 3 x$ ,

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

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Graph of Trigonometric Ratios

Standard XI Mathematics

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