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January 3, 2021 3:31 pm 30 pts
how option d why not a ??. . .. . . . .. . . . . . .. . . .
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• Mahendra devanda
because in (0,2) there are infinite irrational numbers. so if u are taking the intersection with Q then u can't take those irrational numbers . So u should skip those points from ...
• Mahendra devanda
you are thinking wrong direction because it will not equal to (0,2) . it will be subset of Q
• Mahendra devanda
because the set of rational number is neither open set nor a closed set