3-d

Question: If a line lies in the octant $OXYZ$ and it makes equal angles with the axes, then

1) $l=m=n=\frac{1}{\sqrt{3}}$

2) $l=m=n=\pm \frac{1}{\sqrt{3}}$

3) $l=m=n=-\frac{1}{\sqrt{3}}$

4) $l=m=n=\pm \frac{1}{\sqrt{2}}$

Solution:

Explanation: No Explanation

System of co-ordinates Direction cosines and direction ratios Projection

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