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  4. If the d.rs of a line are √3,1,2 √3 then the sum of the d.cs of that line is...

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Q. If the d.rs of a line are $\sqrt{3},1,2 \sqrt{3}$ then the sum of the d.cs of that line is...

Three Dimensional Geometry

Solution:

D.c s of line are $\frac{\sqrt{3}}{4}, \frac{1}{4} , \frac{2\sqrt{3}}{4} $
D.r’s of line are $\sqrt{3} + 1 +2\sqrt{3} = 3\sqrt{3} + 1 $