-1 3) Find dom (R), range(R), R¯¹, R · R, R · R-¹, R-¹ · R for the following relations: (a) R = {(x, y)|x, y ¤ N and y divides x}; (b) R = {(x, y) |x, y E R and 2x ≥ 3y}; (c) R = {(x, y) |x, y € and y ≥ sinx}. 2

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