Florida Algebra 2, 2011
 SELECT PAGE NO. SELECT PROBLEM NO. FOR THE PAGE
15

 PAGE: 197 SET: Exercises PROBLEM: 15

For subtracting matrices, their dimension should be equal.

First write the dimension of the matrix.

The first matrix is

The matrix has 4 row and 1 columns, so dimensions of matrix are .

The second matrix is

The matrix has 4 row and 1 columns, so dimensions of matrix are .

The dimensions of matrix are equal. The operation of addition is possible.

(Subtract corresponding elements)

(Product of two same signs is positive)

(Simplify)

The solution is .

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