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moongazer

Explain why the sum, the difference, and the product of two rational numbers are rational numbers. Is the product of two irrational numbers necessarily irrational? What about the sum?

  • one year ago
  • one year ago

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  1. moongazer
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    -Because when you add and multiply rational numbers you will still obatain a fraction or ratio of two integers. -No -Yes Is this the best explanation?

    • one year ago
  2. ParthKohli
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    Yes.

    • one year ago
  3. moongazer
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    If not , please give me some hints :)

    • one year ago
  4. ParthKohli
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    If you need counter-proofs: 1) No counter-proof. 2) \(\rm i\times i = 1\) 3) No counter-proof.

    • one year ago
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