Neco 2017 Further Mathematics Question 42

Practice objective / multiple choice question 42 from the 2017 Neco Further Mathematics examination.

Neco 2017 Further Mathematics Objective / Multiple Choice Medium Difficulty
Question 42 NECO • 2017 • FURTHER_MATHEMATICS • objective

For the matrix \(B=\begin{pmatrix}1&2&3\\4&5&k\\7&8&9\end{pmatrix}\):\n(i) Find the value of \(k\) that makes \(B\) singular.\n(ii) For that value of \(k\), compute the sum of all entries of the adjugate of \(B\).

Answer Options

Correct Answer A. k = 6, sum = 0
B. k = 6, sum = 3
C. k = 7, sum = -1
D. k = 5, sum = 0
Correct Answer
A
Correct Option:
k = 6, sum = 0

About This Question

This is Neco 2017 Further Mathematics Question 42. It is one of the objective questions from the 2017 Neco Further Mathematics examination.

Difficulty level: Medium .

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