A) (1, 1, 1)
B) (2, 1, ?1)
C) (1, 2, ?1)
D) (1, ? 2, ? 1)
Correct Answer: D
Solution :
\[l\,(1)+m(0)+n(2-1)=0\,\,\Rightarrow \,\,l+n=0\] And \[l\,(-2)+m(1)+n(-4)=0\,\,\,\,\Rightarrow \,\,\,2l-m+4n=0\] \[\therefore \,\,\,l=-\frac{m}{2}=-\,n\]. Hence direction ratios are\[(1,\,\,-2,\,\,-1)\].You need to login to perform this action.
You will be redirected in
3 sec