Answer the following questions.
What is the definition of a matrix?
A rectangular array of only whole numbers.
A triangular array of real numbers or symbols.
A rectangular array of real numbers, symbols, and expressions.
A rectangular array of only real numbers.
What is a square matrix?
A matrix that contains the same number of rows as columns.
A matrix that contains more columns than rows.
A matrix that contains more rows than columns.
Is the array |
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a matrix? |
Is the array |
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a matrix? |
How many elements does a matrix with $4$4 rows and $5$5 columns contain?