# If a line makes an angle of 60°, 150°, 45° with the positive x, y, z-axis respectively, find its direction cosines.

Category: QuestionsIf a line makes an angle of 60°, 150°, 45° with the positive x, y, z-axis respectively, find its direction cosines.
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If a line makes an angle of 60°, 150°, 45° with the positive x, y, z-axis respectively, find its direction cosines.

(a) –$$\frac{1}{2},-\frac{\sqrt{3}}{2},\frac{1}{\sqrt{2}}$$

(b) –$$\frac{1}{2},-\frac{\sqrt{3}}{2},-\frac{1}{\sqrt{2}}$$

(c) $$\frac{1}{2},-\frac{\sqrt{3}}{2},\frac{1}{\sqrt{2}}$$

(d) $$\frac{1}{2},\frac{\sqrt{3}}{2},-\frac{1}{\sqrt{2}}$$

I have been asked this question in class test.

This is a very interesting question from Direction Cosines and Direction Ratios of a Line in portion Three Dimensional Geometry of Mathematics – Class 12
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