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If a line does not pass through the origin, how can we determine its direction cosines?

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MCQ_SA

Single Answer MCQ

Q-00078290

Measure angles directly

Draw a parallel line through the origin

Use a protractor

There is no method

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Q1.

What are the direction cosines of a line?

Q2.

If a line makes angles α, β, and γ with the x, y, and z axes, respectively, what is true about the direction cosines l, m, n?

Q3.

What do direction ratios represent for a line in three-dimensional space?

Q4.

What happens to the direction cosines if the direction of a line is reversed?