Lesson 3-2 Practice

Front

What is the dimension of the product of two matrices if the first matrix is 2x3 and the second matrix is 3x4?

Back

(2 x 4)

Front

Can a 3x2 matrix be multiplied by a 2x3 matrix? If yes, what is the dimension of the product?

Back

Yes, the product is (3 x 3).

Front

What is the condition for two matrices to be multiplied?

Back

The number of columns in the first matrix must equal the number of rows in the second matrix.

Front

If a 2x3 matrix is multiplied by a 3x2 matrix, what is the dimension of the resulting matrix?

Back

(2 x 2)

Front

What is the dimension of the product of a 3x1 matrix and a 1x3 matrix?

Back

(3 x 3)

Front

If the matrices cannot be multiplied, what should be written?

Back

undefined

Front

What is the dimension of the product of a 4x2 matrix and a 2x5 matrix?

Back

(4 x 5)

Front

Can a 2x2 matrix be multiplied by a 2x2 matrix? If yes, what is the dimension of the product?

Back

Yes, the product is (2 x 2).

Front

If a 3x3 matrix is multiplied by a 3x1 matrix, what is the dimension of the product?

Back

(3 x 1)

Front

What is the result of multiplying a 2x3 matrix by a 3x12 matrix?

Back

(2 x 12)