Waec Model Questions Vol1 2021 Mathematics Question 24
Practice objective / multiple choice question 24 from the 2021 Waec Model Questions Vol1 Mathematics examination.
In a plane, vectors \(\mathbf{a}\) and \(\mathbf{b}\) satisfy \(|\mathbf{a}| = 5\) and \(|\mathbf{b}| = 8\). A third vector is defined by \(\mathbf{c} = 2\mathbf{a} - \mathbf{b}\). If \(|\mathbf{c}| = 7\), find the angle between \(\mathbf{a}\) and \(\mathbf{b}\) in degrees (to the nearest tenth).
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This is Waec Model Questions Vol1 2021 Mathematics Question 24. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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