Question: Find, without proof, the sup A and inf A, if exist a.) A= xER: x2 + 2x = 3) b.) A= xER: x2 + 2x

Find, without proof, the sup A and inf A, if exist

a.) A= xER: x2 + 2x = 3) b.) A= xER: x2

Find, without proof, the sup A and inf A, if exist a.) A= xER: x2 + 2x = 3) b.) A= xER: x2 + 2x

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