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Question

The slope of a line which makes an angle of 60 with the positive direction of y – axis is

A

1/√3

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B

1

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C

√3

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D

-1

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Solution

The correct option is A 13

We know that the slope of line is given by tanθ where θ is the angle between the line and the x- axis.

Since, x- axis and y-axis are perpendicular and the angle made by the line with y- axis is 60, therefore, angle made by the x- axis is,

θ=9060=30

Thus, Slope of the line =tan30=13



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