1.2 Operation of Matrices

What is the condition of adding and subtracting 2 matrices?

• Two matrices can be added and substracted even they have different size.

• Two matrices can be added and subtracted if they have the same size.

The answer is

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The answer is

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Tick 2 types of multiplication of Matrices

• Scalar multiplication

• Two matrices in which the number of columns of the first matrix must be EQUAL to the number of rows of the second matrix.

• Two matrices in which the number of columns of the first matrix must not be EQUAL to the number of rows of the second matrix.

The answer is

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What will be the dimension of multiplying matrices A_2x3 and B_3x2?

• 2 x 3

• 3 x 3

• 3 x 2

• 2 x 2

Answer explanation

The dimension or order for the product of multiplication is 2 x 2.

The answer is

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Answer explanation

The answer is 7 and 12.