Waec Model Questions Vol1 2020 Mathematics Question 17
Practice objective / multiple choice question 17 from the 2020 Waec Model Questions Vol1 Mathematics examination.
In triangle \(ABC\) the angle \(C\) is a right angle. The side opposite \(C\) has length \(c = \sqrt{39}\) and the other two sides are \(a = 7\) and \(b = 5\). Find the exact value of \(\cos(A-B)\).
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About This Question
This is Waec Model Questions Vol1 2020 Mathematics Question 17. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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