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The direction cosines l, m and n of two ...

The direction cosines l, m and n of two lines are connected by the relations `l+m+n=0 and lm=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:
C
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NIKITA PUBLICATION-THREE DIMENSIONAL GEOMETRY -MULTIPLE CHOICE QUESTIONS
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