Neco 2025 Mathematics Question 16
Practice objective / multiple choice question 16 from the 2025 Neco Mathematics examination.
If \(2\mathbf{a} - \mathbf{b}\) is perpendicular to \(\mathbf{a} + 3\mathbf{b}\) and \(|\mathbf{a}| = 5\), \(|\mathbf{b}| = 8\), find the angle between \(\mathbf{a}\) and \(\mathbf{b}\) in degrees (to one decimal place).
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About This Question
This is Neco 2025 Mathematics Question 16. It is one of the objective questions from the 2025 Neco Mathematics examination.
Difficulty level: Hard .
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