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Question: Answered & Verified by Expert
If the directions cosines of a line are $k, k, k$, then
MathematicsThree Dimensional Geometry
Options:
  • A
    $k>0$
  • B
    $0 < \mathrm{k} < 1$
  • C
    $k=1$
  • D
    $k=\frac{1}{\sqrt{3}}$ or $-\frac{1}{\sqrt{3}}$
Solution:
2195 Upvotes Verified Answer
The correct answer is:
$k=\frac{1}{\sqrt{3}}$ or $-\frac{1}{\sqrt{3}}$
No Solution Available

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