A) \[\frac{8}{5}\]
B) \[\frac{5}{8}\]
C) 0
D) 1
Correct Answer: A
Solution :
Given vectors are coplanar, \[\therefore \,\,\,\left| \,\begin{matrix} 2 & -3 & 4 \\ 1 & 2 & -1 \\ x & -1 & 2 \\ \end{matrix}\, \right|=0\Rightarrow x=\frac{8}{5}\].You need to login to perform this action.
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