MAT136H1 Lecture Notes - Central Angle, Polar Coordinate System, Radian
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MAT136H1 Full Course Notes
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Area for sector of a circle: where r is radius and is the central angle in radian measure. Given a region r bound by polar curves and rays and and. Starting from approximation, divide the region into n sectors with equal central angle of and the rays are . Arc length is chosen in the th subinterval [ ], then the area can be. ] , then the approximation of the total area is: since. Given that arc length is given by: (
