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Mathematics, 26.06.2020 16:01 allytrujillo20oy0dib
4. Rational, irrational (4 points) (1) (2 points) Prove or disprove that if x y is an irrational number, then x or y is also an irrational number. (2) (2 points) Prove that if x 2 is irrational, then x is irrational. (Hint: try a proof by contrapositive)
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4. Rational, irrational (4 points) (1) (2 points) Prove or disprove that if x y is an irrational num...
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