Igcse Model Questions Vol1 2022 Mathematics Question 3
Practice objective / multiple choice question 3 from the 2022 Igcse Model Questions Vol1 Mathematics examination.
Two vectors \(\mathbf{u}\) and \(\mathbf{v}\) in a plane satisfy \(|\mathbf{u}| = 5\), \(|\mathbf{v}| = 7\) and \(|\mathbf{u} + \mathbf{v}| = 9\). (i) Find the angle \(\theta\) between \(\mathbf{u}\) and \(\mathbf{v}\) (give your answer to the nearest degree). (ii) Find the value of the dot product \(\mathbf{u} \cdot \mathbf{v}\).
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About This Question
This is Igcse Model Questions Vol1 2022 Mathematics Question 3. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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