Waec Model Questions Vol1 2019 Mathematics Question 18
Practice objective / multiple choice question 18 from the 2019 Waec Model Questions Vol1 Mathematics examination.
In a plane, vectors \(\mathbf{a}\) and \(\mathbf{b}\) have magnitudes |a| = 5 and |b| = 7 respectively. If the vector (a + 2b) is perpendicular to (3a - b), find the angle between a and b (in degrees, correct to one decimal place).
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About This Question
This is Waec Model Questions Vol1 2019 Mathematics Question 18. It is a objective / multiple choice question from the 2019 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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