Further MathematicsTrigonometryWAEC
Solve 2 cos θ − 1 = 0 for 0° ≤ θ ≤ 360°.
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Answer: C. 60° and 300°
cos θ = 1/2 in the first and fourth quadrants.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.