Let U = {x: x is an integer and 2 < x < 10}. In each of the following cases, find A, B and determine whether A C B,B C A, both or neither: i. A = {x: 2x + 1> 7}, B = {x: x² > 20}. ii. A = {x: x2 - 3x + 2 = 0}, B = {x:x + 7 is a perfect square}. %3D .

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