A-LevelMathematicsCircular measureMay/June 2015Paper 1 Q24 Marks
In the diagram, AYB is a semicircle with AB as diameter and OAXB is a sector of a circle with centre O and radius r. Angle AOB = 2θ radians. Find an expression, in terms of r and θ, for the area of the shaded region. [Diagram shown]
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