Multiply Matrices


- A) $\mathrm { AB }$ Is Not Defined

question 148

Multiple Choice

Multiply Matrices


- $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 3 \end{array} \right] , B = \left[ \begin{array} { r r } 3 & 0 \\ - 2 & 1 \end{array} \right]$

• A) \(\mathrm { AB }\) is not defined.
• B)
• \(\left[\begin{array}{rrr}
• 9 & -6 & 3 \\
• -6 & 8 & -5
• \end{array}\right]\)
• C) \(\left[\begin{array}{rr}
• 9 & -6 \\
• -6 & 8 \\
• 3 & -5
• \end{array}\right]\)
• D)
• \(\left[ \begin{array} { l l } 9 & 0 \\ 0 & 4 \end{array} \right]\)

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