Post Utme Ksu 2021 Mathematics Question 19

Practice objective / multiple choice question 19 from the 2021 Post Utme Ksu Mathematics examination.

Post Utme Ksu 2021 Mathematics Objective / Multiple Choice

Question 19 POST_UTME_KSU • 2021 • MATHEMATICS • objective

If \(A = egin{pmatrix} 2 & 1 \ 1 & 2 \end{pmatrix}\) and \(B = egin{pmatrix} 1 & 0 \ 0 & 1 \end{pmatrix}\), find ( AB ).

A. \(AB = egin{pmatrix} 2 & 1 \ 1 & 2 \end{pmatrix}\)

Correct Answer B. \(AB = egin{pmatrix} 3 & 1 \ 1 & 3 \end{pmatrix}\)

C. \(AB = egin{pmatrix} 2 & 2 \ 2 & 2 \end{pmatrix}\)

D. \(AB = egin{pmatrix} 3 & 2 \ 2 & 3 \end{pmatrix}\)

Correct Answer

Correct Option:

\(AB = egin{pmatrix} 3 & 1 \ 1 & 3 \end{pmatrix}\)

This is Post Utme Ksu 2021 Mathematics Question 19. It is one of the objective questions from the 2021 Post Utme Ksu Mathematics examination.

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