Homework Statement
The probem is to show within 10 seconds that Det(\vec{V} \otimes\vec{V})=0
with \vec{V}(x,y,z)=(Vx(\vec{r}),Vy(\vec{r}),Vz(\vec{r}))
The Attempt at a Solution
So I thought if I show the matrix is not invertible I would be done. But even with that I can't easily solve...