

MCQOPTIONS
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1. |
If the direction cosines of a line are \[\left( \frac{1}{c},\frac{1}{c},\frac{1}{c} \right)\], then [JET 1989; CET 1993] |
A. | \[c>0\] |
B. | \[c=\pm \sqrt{3}\] |
C. | \[0<c<1\] |
D. | \[c>2\] |
Answer» C. \[0<c<1\] | |