If \( A=\left[\begin{array}{ll} 2 & 3 \\ 0 & 4 \end{array}\right]\) and B = \(\left[\begin{array}{ll} 2 & 0 \\ 1 & 5 \end{array}\right]\) which of the following is not correct?
1
\( \mathrm{A}^{\mathrm{T}} \mathrm{B}=\left[\begin{array}{cc} 4 & 0 \\ 10 & 20 \end{array}\right] \)
2
\( (\mathrm{A}+\mathrm{B})^{\mathrm{T}}=\left[\begin{array}{ll} 4 & 1 \\ 3 & 9 \end{array}\right] \)
3
\( \mathrm{A}^{\mathrm{T}} \mathrm{B}=\left[\begin{array}{cc} 0 & 4 \\ 10 & 20 \end{array}\right] \)
4
\( \mathrm{A}^{\mathrm{T}} \mathrm{B}^{\mathrm{T}}=\left[\begin{array}{cc} 4 & 2 \\ 6 & 23 \end{array}\right] \)