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The angle between the lines whose direc...

The angle between the lines whose direction cosines are given by the equatios `l^2+m^2-n^2=0, m+n+l=0` is

A

`pi//2`

B

`pi//3`

C

`pi//4`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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VMC MODULES ENGLISH-THREE DIMENSIONAL GEOMETRY -LEVEL-1
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  5. The direction cosines of a line equally inclined to the axes are:

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  14. The ratio in which the line joining the points (a , b , c)a n d\ (-a ,...

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