Igcse Model Questions Vol1 2017 Mathematics Question 21
Practice objective / multiple choice question 21 from the 2017 Igcse Model Questions Vol1 Mathematics examination.
Two vectors \(\mathbf{a}\) and \(\mathbf{b}\) lie in the same plane. Their magnitudes are \(|\mathbf{a}| = 5\) and \(|\mathbf{b}| = 8\). It is known that the vector \(\mathbf{a} + 2\mathbf{b}\) is perpendicular to the vector \(3\mathbf{a} - \mathbf{b}\). Find the angle between \(\mathbf{a}\) and \(\mathbf{b}\) in degrees, correct to one decimal place.
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About This Question
This is Igcse Model Questions Vol1 2017 Mathematics Question 21. It is one of the objective questions from the 2017 Igcse Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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