Solution
= Solution
The row-column product is the <dot product> $4\cdot6+8\cdot3+1\cdot0$, giving $\boxed{48}$. Its shape is $1\times1$.
= Solution
The row-column product is the <dot product> $4\cdot6+8\cdot3+1\cdot0$, giving $\boxed{48}$. Its shape is $1\times1$.