Waec Model Questions Vol1 2023 Mathematics Question 2
Practice objective / multiple choice question 2 from the 2023 Waec Model Questions Vol1 Mathematics examination.
In a plane, vectors \(\mathbf{a}\) and \(\mathbf{b}\) have magnitudes \(|\mathbf{a}| = 5\) and \(|\mathbf{b}| = 8\). The resultant vector \(\mathbf{a}+\mathbf{b}\) makes an angle of \(30^{\circ}\) with \(\mathbf{a}\). Find the exact value of the dot product \(\mathbf{a}\cdot\mathbf{b}\).
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This is Waec Model Questions Vol1 2023 Mathematics Question 2. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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