Post Utme Futo 2021 Mathematics Question 29

Practice objective / multiple choice question 29 from the 2021 Post Utme Futo Mathematics examination.

Post Utme Futo 2021 Mathematics Objective / Multiple Choice
Question 29 POST_UTME_FUTO • 2021 • MATHEMATICS • objective

Let \(A = \begin{pmatrix} 2 & 1 \ 1 & 2 \end{pmatrix}\). Find the inverse of \(A\).

Answer Options

Correct Answer A. \begin{pmatrix} 1 & -1 \ -1 & 1 \end{pmatrix}
B. \begin{pmatrix} 2 & 1 \ 1 & 2 \end{pmatrix}
C. \begin{pmatrix} 1 & 1 \ 1 & 2 \end{pmatrix}
D. \begin{pmatrix} 2 & -1 \ -1 & 1 \end{pmatrix}
Correct Answer
A
Correct Option:
\begin{pmatrix} 1 & -1 \ -1 & 1 \end{pmatrix}

About This Question

This is Post Utme Futo 2021 Mathematics Question 29. It is one of the objective questions from the 2021 Post Utme Futo Mathematics examination.

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