\"\"

\

The expression is CB.

\

To find product of CB , the number of columns in C must equal the number of rows in B.

\

The matrices are \"\".

\

C is 3×2 matrix and B is 2×3 matrix.

\

So multiplication of matrices C and B is possible.\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"\"\"

\

The solution is \"\".