Enter the following matrix A in MATLAB and create: [A=begin{array}{cccccccc}1 & 2 & 3 & 4 &

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Enter the following matrix A in MATLAB and create:

\[A=\begin{array}{cccccccc}1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\9 & 10 & 11 & 12 & 13 & 14 & 15 & 16 \\17 & 18 & 19 & 20 & 21 & 22 & 23 & 24 \\25 & 23 & 27 & 28 & 29 & 30 & 31 & 32 \\33 & 34 & 35 & 36 & 37 & 38 & 39 & 40\end{array}\]

(a) a $4 \times 5$ matrix $\mathrm{B}$ from the 1st, 3rd, and the 5 th rows, and the 1st, 2nd, 4th, and 8th columns of the matrix A.

(b) a 16 elements-row vector $\mathrm{C}$ from the elements of the 5th row, and the 4th and 6th columns of the matrix $\mathrm{A}$.

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