Home » If x = (begin{pmatrix} 1 & 2 \ 0 & 3 end{pmatrix}) and y =…

If x = (begin{pmatrix} 1 & 2 \ 0 & 3 end{pmatrix}) and y =…

If x = (begin{pmatrix} 1 & 2 \ 0 & 3 end{pmatrix}) and y = (begin{pmatrix} 2 & 1 \ 4 & 3 end{pmatrix}). Find xy.

  • A.
    (begin{pmatrix} 10 & 7 \ 12 & 9 end{pmatrix})
  • B.
    (begin{pmatrix} 2 & 7 \ 4 & 17 end{pmatrix})
  • C.
    (begin{pmatrix} 10 & 4 \ 4 & 6 end{pmatrix})
  • D.
    (begin{pmatrix} 4 & 3 \ 10 & 9 end{pmatrix})
Correct Answer: Option A
Explanation

(begin{pmatrix} 1 & 2 \ 0 & 3 end{pmatrix}); y = (begin{pmatrix} 2 & 1 \ 4 & 3 end{pmatrix}).

= (begin{pmatrix} 2 + 8 & 1 + 6 \ 0 + 12 & 0 + 9 end{pmatrix})

= (begin{pmatrix} 10 & 7 \ 12 & 9 end{pmatrix})

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