Question
Write the slope of the line whose inclination is$: 60^\circ $

Answer

If $\theta $ is the inclination of a line; the slope of the line is $\tan \theta $ and is usually denoted by letter $m$.
Here the inclination of a line is $60^\circ ,$ then $\theta = 60^\circ $
Therefore the slope of the line is $m = \tan 60^\circ = \sqrt{3}$

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