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 a objective / multiple choice question from the 2020 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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