A) \[(1,2,7)\]
B) \[(1,-2,7)\]
C) \[(-1,2,7)\]
D) \[(1,-2,-7)\]
Correct Answer: B
Solution :
Ratio \[=-\left[ \frac{2(2)+(-3)(1)+(1)(1)-7}{2(3)+(-4)(1)+(-5)(1)-7} \right]=-\left[ \frac{-5}{-10} \right]=-\left( \frac{1}{2} \right)\] |
\[\therefore \,\,\,x=\frac{2(2)-3(1)}{1}=1,\] \[y=\frac{-3(2)-(-4)}{1}=-2\] |
and \[z=\frac{1(2)-(-5)}{1}=7.\] |
\[\therefore \,\,P\equiv (1,-2,7)\] |
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