MathematicsTrigonometryWAEC
If cos θ = 5/13 and θ is acute, find sin θ.
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Answer: A. 12/13
In a 5-12-13 right-angled triangle, sin θ = opposite/hypotenuse = 12/13.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.