A) 18
B) 24
C) 36
D) 50
Correct Answer: A
Solution :
\[A\equiv \,(3\lambda +7,\,\,2\lambda +7,\,\,\lambda +3)\] \[B\equiv \,(2\mu +1,\,4\mu -1,\,3\mu -1)\] \[\therefore \,\,\frac{3\lambda -2\lambda +6}{2}=\frac{2\lambda -4\mu +8}{2}\,=\frac{\lambda -3\mu +4}{1}\] \[\therefore \,\,\lambda =2\] and \[\mu =0\] \[\Rightarrow \,A=(13,\,11,5),\,\,B=\,(1,-1,\,-1)\] \[\therefore \,\,AB=18\]You need to login to perform this action.
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