Unformatted text preview: x are equivalent: 3 x + 2 is irrational. x/ 2 is irrational. 5. Prove that if n is a prefect square, n + 2 is not a perfect square. 6. Prove that if A ⊆ B then 2 A ⊆ 2 B . 7. Prove that A( B ∩ C ) = ( AB ) ∪ ( AC ). 8. Solve for x: 200 X i =2 i 3 = x + 9 X i =3 i 3 + 200 X k =11 k 3 1...
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 Spring '10
 JohnIacono
 Math, Prime number, positive integer, Prove, prefect square

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