MCQ
The direction cosines of $z$ axis are
- A$1,0,0$
- B$0,1,0$
- C$1,1,0$
- D$0,0,1$
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Interval Function
$(\lambda-1) x+(3 \lambda+1) y+2 \lambda z=0$
$(\lambda-1) x+(4 \lambda-2) y+(\lambda+3) z=0$
$2 x+(3 \lambda+1) y+3(\lambda-1) z=0$
has non-zero solutions, is