strongWhich of the following sets are equal?br /(i) A={1,2,3}br /(ii) B={xstrongspan class=math-...

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strongWhich of the following sets are equal?br /(i) A={1,2,3}br /(ii) B={xstrongspan class=math-tex\(\in\)/span/strongR:xsup2/sup-2x+1=0}br /(iii) C={1,2,2,3}br /(iv) D={xstrongspan class=math-tex\(\in\)/span/strongR:xsup3/sup-6xsup2/sup+11x-6=0}/strong
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