Q1 - Alg 2 - Week 08 Quiz

What is the size of the resulting matrix when a [2x1] and a [1x2] matrix are multiplied?

• [2x2]

• [2x1]

• [1x1]

• [1x2]

Which of the following is the identity matrix?

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Which matrix can be multiplied by this matrix?

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Multiply the matrices.

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• These two matrices can't be multiplied

What is the determinant of this matrix |A| ?

What is the inverse to this matrix?

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• This matrix does not have an inverse

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What are the dimensions of this matrix?

• [3x1]

• [1x3]

• [0x5x1]

• [3x3]

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Which of the following pairs can be multiplied?

• [2x2] X [2x1]

• [1x2] X [2x1]

• [1x2] X [1x2]

• [2x2] X [2x2]

• [2x1] X [1x2]