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  3. 1133 exercise find the contrapositives of the following statements write...

Question: 1133 exercise find the contrapositives of the following statements write...

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1.13.3 EXERCISE Find the contrapositives of the following statements. Write things in positive terms wherever possible. 1. If x < 0, then x2 0 2. If x 0, then there exists y for which xy = 1. 3. If x is an even integer, then x2 is an even integer. 4. If x y is odd and y + z is odd, then x + z is odd. 5. If f is a polynomial of odd degree, then f has at least one real root.

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