Post Utme Achievers University 2022 Mathematics Question 20

Practice objective / multiple choice question 20 from the 2022 Post Utme Achievers University Mathematics examination.

Post Utme Achievers University 2022 Mathematics Objective / Multiple Choice
Question 20 POST_UTME_ACHIEVERS_UNIVERSITY • 2022 • MATHEMATICS • objective

Find the vector ( mathbf{a} ) such that \(\mathbf{a} \cdot \mathbf{b} = 10\) and \(\mathbf{a} \cdot \mathbf{c} = 5\), where \(\mathbf{b} = 2\mathbf{i} + 3\mathbf{j}\) and \(\mathbf{c} = \mathbf{i} - 2\mathbf{j}\).

Answer Options

Correct Answer A. \(5\mathbf{i} + 3\mathbf{j}\)
B. \(3\mathbf{i} + 5\mathbf{j}\)
C. \(2\mathbf{i} + 4\mathbf{j}\)
D. \(4\mathbf{i} + 2\mathbf{j}\)
Correct Answer
A
Correct Option:
\(5\mathbf{i} + 3\mathbf{j}\)

About This Question

This is Post Utme Achievers University 2022 Mathematics Question 20. It is one of the objective questions from the 2022 Post Utme Achievers University Mathematics examination.

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