Neco 2023 Further Mathematics Question 24

Practice objective / multiple choice question 24 from the 2023 Neco Further Mathematics examination.

Neco 2023 Further Mathematics Objective / Multiple Choice Medium Difficulty
Question 24 NECO • 2023 • FURTHER_MATHEMATICS • objective

Let \( A = \begin{pmatrix} 2 & k \\ k & 5 \end{pmatrix} \) where \( k \) is an integer. Determine all integer values of \( k \) for which \( A \) is invertible and its inverse has integer entries.

Answer Options

Correct Answer A. k = \pm 3
B. k = 0
C. k = \pm 2
D. k = \pm 4
Correct Answer
A
Correct Option:
k = \pm 3

About This Question

This is Neco 2023 Further Mathematics Question 24. It is one of the objective questions from the 2023 Neco Further Mathematics examination.

Difficulty level: Medium .

View More Neco 2023 Further Mathematics Questions More Neco Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support