If rows of a matrix are linearly dependent then its determinant is 0.

Rows of this matrix are obviously dependent because

`8cdot[a,b,c]=[8a,8b,8c]`

Hence

`det[[a,b,c],[8a,8b,8c],[g,h,i]]=0`

If rows of a matrix are linearly dependent then its determinant is 0.

Rows of this matrix are obviously dependent because

`8cdot[a,b,c]=[8a,8b,8c]`

Hence

`det[[a,b,c],[8a,8b,8c],[g,h,i]]=0`