+0

# Help fast!

0
86
1

Find the value of $x$ such that $$$\mathbf{v} = \begin{pmatrix} 1 \\ 2 \\ x \end{pmatrix}$$$is a vector parallel to the plane through the points $A = (0,1,1), B = (1,1,0)$ and $C = (1,0,3).$

Apr 10, 2019