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Question Practice

What can be concluded about two lines if their direction cosines satisfy l1/l2 = m1/m2 = n1/n2?

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MCQ_SA
CBSE
Class 12
Mathematics
Mathematics Part - II
Three Dimensional Geometry
Question Bank

What can be concluded about tw...

Single Answer MCQ
Q-00078299

What can be concluded about two lines if their direction cosines satisfy l1/l2 = m1/m2 = n1/n2?

1

They are identical

2

They are skew lines

3

They are parallel

4

They are intersecting

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Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What are the direction cosines of a line?

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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?

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Q3.

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

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Q4.

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

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