ALGEBRA 2, 2010
 SELECT PAGE NO. SELECT PROBLEM NO. FOR THE PAGE
15

 PAGE: 205 SET: Exercises PROBLEM: 15

Multiplication of two matrices possible if the number of columns in the first matrix equals the number of rows in the second matrix.

The dimensions of the matrix P are  and the number of columns in the matrix A is 3.

The dimensions of the matrix Q are and the number of the rows in the matrix B is 3.

The number of columns in the matrix P equals the number of rows in the matrix Q.

So, matrix product PQ is possible.

Its dimensions are .

The matrix product PQ is defined and matrix PQ dimensions are .

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