3-d

Question: The projections of a line on the co-ordinate axes are 4, 6, 12. The direction cosines of the line are

1) $\frac{2}{7},\frac{3}{7},\frac{6}{7}$

2) 2, 3, 6

3) $\frac{2}{11},\frac{3}{11},\frac{6}{11}$

4) None of these

Solution:

Explanation: No Explanation

System of co-ordinates Direction cosines and direction ratios Projection

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