Question: 1. Consider the matrix defined below. How many rows are in the matrix? (a) 1 (b) 3 (c) 4 (d) 12 (e) None of the

1. Consider the matrix defined below.

How many rows are in the matrix? (a) 1 (b) 3 (c) 4 (d) 12 (e) None of the above. 2. Consider the matrix defined below.

How many columns are in the matrix? (a) 1 (b) 3 (c) 4 (d) 12 (e) None of the above.

Sol108:

  1. The matrix A has 3 rows. The rows are separated by semicolons in the definition of the matrix.
  2. The matrix A has 4 columns. The numbers within each row are separated by commas, and the columns are separated by spaces in the definition of the matrix.

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