Matrix Ac

If A is a matrix of 5 elements then the all possible orders of A are

• 1x5 and 5x1

• 1x1; 2x2; 5x5

• 5x5; 1x5

• 5x5; 5x1

Matrix Multiplication is

• commutative and associative

• associative and distributive

• commutative and distributive

• None of the above

Which of the following are equivalent?

Select ALL that apply.

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• 
• 
• 
• 

When you add a matrix to the zero matrix, you obtain:

• The original matrix

• A zero matrix

• An identity matrix

• An undefined matrix

When you multiply an m x n matrix with an n x p zero matrix, you obtain:

• The original matrix

• A zero matrix

• An identity matrix

• An undefined matrix

When you multiply an m x m matrix with an m x m identity matrix, you obtain:

• The original matrix

• A zero matrix

• An identity matrix

• An undefined matrix

a₂₃ + a₁₂ - a₃₁ + a₄₃?

• -2

• -1

• -3

• 0

Which of the following statements that are TRUE? Select ALL that apply

• Matrix does not have an inverse

• It is possible to compute AC

• AB = BA

• B(AC) = (BA)C

Which of the following is FALSE?

• The determinant of A is 22

• Its posible to compute AB

• AC = CA

Find the value of y