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If the direction ratio of two lines are ...

If the direction ratio of two lines are given by `3lm-4ln+mn=0 and l+2m+3n=0`, then the angle between the lines, is

A

`0^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
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NIKITA PUBLICATION-THREE DIMENSIONAL GEOMETRY -MULTIPLE CHOICE QUESTIONS
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  12. If l(1), m(1), n(1) and l(2), m(2), n(2) are the direction cosines of ...

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  13. The direction ratios of vector perpendicular to the two lines whose di...

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  14. The direction ratios of a vector perpendicular to the two lines whose ...

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  15. Find the direction cosines of the line which is perpendicular to the l...

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  17. The direction cosines of the line which is perpendicular to the lines ...

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  18. The direction ratios of a line which is perpendicular to the two line...

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