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D and E are sets of real numbers defined as follows. D= (y y>4) E= (y VS7) Write D U E and D n E

D and E are sets of real numbers defined as follows. D= (y y>4) E= (y VS7) Write D U E and D n E using interval notation. If the set is empty, write O. DUE = (0,0) [0,0] (0,0] E [0,0) 0 DnE = OO - OO X

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