Waec Model Questions Vol1 2021 Mathematics Question 24

Practice objective / multiple choice question 24 from the 2021 Waec Model Questions Vol1 Mathematics examination.

Waec Model Questions Vol1 2021 Mathematics Objective / Multiple Choice Hard Difficulty
Question 24 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • MATHEMATICS • objective

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).

Answer Options

A. 60.0°
B. 30.0°
C. 90.0°
Correct Answer D. 44.0°
Correct Answer
D
Correct Option:
44.0°

About This Question

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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