Neco 2020 Mathematics Question 4
Practice objective / multiple choice question 4 from the 2020 Neco Mathematics examination.
In a plane two vectors \(\mathbf{a}\) and \(\mathbf{b}\) satisfy \(|\mathbf{a}| = 5\), \(|\mathbf{b}| = 7\) and the vector \(\mathbf{a}+\mathbf{b}\) is perpendicular to \(2\mathbf{a}-\mathbf{b}\). Find the angle between \(\mathbf{a}\) and \(\mathbf{b}\) in degrees (give your answer to one decimal place).
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About This Question
This is Neco 2020 Mathematics Question 4. It is one of the objective questions from the 2020 Neco Mathematics examination.
Difficulty level: Hard .
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