Prove each implication by contradiction, (a) If x and y are positive numbers, then x + y
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(a) If x and y are positive numbers, then √x + y ≠ √x + √y.
(b) If x is irrational and y is rational, then x + y is irrational.
(c) If 13 people are selected, at least 2 have birthdays in the same month.
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b The implication here is x is irrational and y is r...View the full answer
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