10. (a) Sketch the region R bounded by the line y = 2, the curve y = 6-r² and the r-axis. Find the area of the region R. (c) Sketch the region R bounded by the curve y = 2² +2, z-axis and y-axis and the line joining the point (2,6) to the point (26.0). Find the area of the region R. (c) Find the area enclosed between the curves y = 2² +3 and y= 10r - 2². Sketch the area enclosed.



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