What is the dimension of the matrix [(6,-1,5),(-2,3,-4)]?

1 Answer
Gió
Mar 3, 2017

This is a rectangular matrix of dimension 2xx3 (read as "two-by- three" matrix).

Explanation:

You can "read" the dimension by counting the number of rows and of columns expressing your dimension as:
"number of rows"xx"number of columns"

This dimension can be particularly useful when you multiply matrices because it will give you a definite condition to be able to operate the multiplication.

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