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Mathematics 13 Online
OpenStudy (rowanmartinfan):

Which of the following is an example of why irrational numbers are not closed under addition? root 4 + root 4 = 2 + 2 = 4, and 4 is not irrational (1/2) + (1/2) = 1, and 1 is not irrational root 10 + (-(root 10), and 0 is not irrational –3 + 3 = 0, and 0 is not irrational

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