Recap Matrix

Name the size of this matrix.

• 3x1
• 1x3
• 1x1

• 3x3

How many columns are there in a 5 x 4 matrix?

• 5
• 4
• 20

In Matrix R, identify element of r₂₃?

• 8

• -2

• 1

• 20

find: B x C

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• not possible

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Identify the transpose of matrix A

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Find the determinant of matrix A

(a)  

Find the determinant of matrix A

(a)  

Find the minor of M_3,2 from matrix B

(a)  

Find the cofactor of matrix A given the minor as in the picture

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Given matrix A and B. Find matrix 2B+A

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