Question

Help me please!!

Answer 1

you see,
first matrix is 4*3 and 2nd matrix is 3*4
so, when we multiply 1st and 2nd , the resulting matrix is of 4*4 size.
Because multiplication property of matrices says that when column(s) of first matrix and row(s) of 2nd matrix are same, only when they are multiplied.

But here we are concerned about C33 which says that the element present at 3rd row and 3rd column of the resulting matrix after multiplication.