(OR)If A = {x | x is a prime number and x 20;B = {x | 2x + 1, x e w an – InterviewSolution

1.	(OR)If A = {x \| x is a prime number and x 20;B = {x \| 2x + 1, x e w and x 9), thenfind (i) A U B (ii) A B(iii) A - B (iv) B -A.What you are observed ?
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