Gce Model Questions Vol1 2025 Further Mathematics Question 38
Practice objective / multiple choice question 38 from the 2025 Gce Model Questions Vol1 Further Mathematics examination.
Let \(A=\begin{pmatrix}2 & k\\ k & 5\end{pmatrix}\). Suppose \(A^{-1}\) exists and all its entries are integers. Find the positive integer value of \(k\) and give \(\det A\).
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About This Question
This is Gce Model Questions Vol1 2025 Further Mathematics Question 38. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Further Mathematics examination.
Difficulty level: Medium .
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