Post Utme Esut 2017 Mathematics Question 22

Practice objective / multiple choice question 22 from the 2017 Post Utme Esut Mathematics examination.

Post Utme Esut 2017 Mathematics Objective / Multiple Choice
Question 22 POST_UTME_ESUT • 2017 • MATHEMATICS • objective

Solve the system of equations using matrices: \begin{align*} x + y + z &= 6, \ x + 2y + 3z &= 11, \ x + 3y + 6z &= 16. \end{align*}

Answer Options

A. \begin{bmatrix} 1 & 1 & 1 \ 1 & 2 & 3 \ 1 & 3 & 6 \end{bmatrix}
B. \begin{bmatrix} 1 & 2 & 3 \ 1 & 3 & 6 \ 1 & 6 & 11 \end{bmatrix}
Correct Answer C. \begin{bmatrix} 1 & 1 & 1 \ 1 & 2 & 3 \ 1 & 3 & 6 \end{bmatrix}^{-1}
D. \begin{bmatrix} 1 & 2 & 3 \ 1 & 3 & 6 \ 1 & 6 & 11 \end{bmatrix}^{-1}
Correct Answer
C
Correct Option:
\begin{bmatrix} 1 & 1 & 1 \ 1 & 2 & 3 \ 1 & 3 & 6 \end{bmatrix}^{-1}

About This Question

This is Post Utme Esut 2017 Mathematics Question 22. It is one of the objective questions from the 2017 Post Utme Esut Mathematics examination.

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