(Solved): 6. The dimensions of matrices \( \mathrm{A}, \mathrm{B} \), and \( \mathrm{C} \) are as follows: \( ...

6. The dimensions of matrices \( \mathrm{A}, \mathrm{B} \), and \( \mathrm{C} \) are as follows: \( \mathrm{A} \) is \( 3 \times 3, \mathrm{~B} \) is \( 2 \times 3 \), and \( \mathrm{C} \) is \( 2 \times 3 \). Which of the following matrix operations is undefined? Select all that apply. - BA - \( \mathrm{AC} \) - \( \mathrm{B}+\mathrm{C} \) - \( C^{\top} \)