Understand Operation: Understand the operation to be performed. We need to multiply each element of the matrix by one-half 21. This is a scalar multiplication of a matrix.
Multiply First Element: Multiply the first element of the matrix by 21.(21)×(−4)=−2
Multiply Second Element: Multiply the second element of the matrix by 21.$21×6=3\)
Multiply Third Element: Multiply the third element of the matrix by 21. (21)×2=1
Multiply Fourth Element: Multiply the fourth element of the matrix by 21.21×0=0
Write Resulting Matrix: Write down the resulting matrix after the scalar multiplication.The resulting matrix is:\left[\begin{array}{cc}\(\newline-2 & 3 (\newline\)1 & 0\end{array}\right]\)
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