Matrices… | NUST Entrance Test Mathematics

MM

Mashaal Masha

Sep 28, 2022

Choose the correct options for the following questions.

If A and B are two matrices of order 2*3 and 3*1, respectively then A+B=

Difficulty: Easy

A:

BA

B:

AB

C:

Not possible

D:

0

Given matrix A of order m*n, then A+(-A)=

Difficulty: Easy

A:

0

B:

A

C:

-A

D:

2A

If A and B are two matrices of order B*B then AB=A iff

Difficulty: Easy

A:

B=I

B:

B=A

C:

B=A^{2}

D:

B-B^{2}

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Matrices and Determinants - Set 7