Problems 1. List the members of these sets:
(a) {x | x ER, x3 = x}
(b) {2x – 1 x 7,1 < x < 12}
(c) {x | x E Q, x2 = 2} (HINT: V2 and -V2 are not rational!)
2. What are these sets equal to?
(a) {x | X ER, 2+3 +1 = 2-3}
(b) {x | x ER, x = x}

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