Question

A = \begin{pmatrix} 1 & 2 \\ 3 & -1 \end{pmatrix} B = \begin{pmatrix} 1 & 0 \\ 4 & 2 \end{pmatrix} Find AB if possible.

          A = \begin{pmatrix} 1 & 2 \\ 3 & -1 \end{pmatrix} B = \begin{pmatrix} 1 & 0 \\ 4 & 2 \end{pmatrix} Find AB if possible.

A =
< p m a t r i x >
B =
< p m a t r i x >
Find AB if possible.

Added by Sarah V.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Supreeta N

Step 1

To multiply two matrices, the number of columns in the first matrix must be equal to the number of rows in the second matrix. In this case, matrix A has 1 row and 2 columns, and matrix B has 2 rows and 1 column. Since the number of columns in A (2) is equal to the Show more…

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