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Multimea numerelor rationale

Multimea numerelor rationale. Ce intelegem prin numar rational?. DEFINITIE:. Care este clasificarea numerelor rationale?. Ordonare. Cum comparam doua sau mai multe numere rationale?. Cum se calculeaza suma a doua sau mai multe numere rationale?.

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Multimea numerelor rationale

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  1. Multimea numerelor rationale

  2. Ce intelegem prin numar rational? • DEFINITIE:

  3. Care este clasificarea numerelor rationale?

  4. Ordonare

  5. Cum comparam doua sau mai multe numere rationale?

  6. Cum se calculeaza suma a doua sau mai multe numere rationale? • DEFINITIE: Suma a doua nr rationale “a” si “b” este un nr rational, notat a+b

  7. Care sunt proprietatile adunarii numerelor rationale? • 1.asociativitatea (a + b) + c = a + (b + c) • 2.comutativitatea a + b = b + a • 3.existenta elementului neutru: 0 a + 0 = 0 + a = a • 4.orice numar rational are un opus a + (–a) = (–a) + a = 0

  8. Cum se calculeaza diferenta a doua numere rationale? • DEFINITIE: Diferenta a doua numere rationale “a” si “b” este un numar rational, notat a-b.

  9. Cum se calculeaza produsul a doua sau mai multe numere rationale? • DEFINITIE: Produsul a doua numere rationale este un numar rational

  10. Care sunt proprietatile inmultirii numerelor rationale? • 1.Comutativitatea a  b = b  a • 2. Asociativitatea a  (b  c) = (a b) c • 3.1 element neutru a  1 = 1  a = a • 4.Distributivitatea a (b+c)=a b+ac

  11. Cum se calculeaza catul a doua numere rationale? • DEFINITIE:Catul a doua numere rationale este un numar rational.

  12. Cum se calculeaza puterea unui numar rational cu exponent numar natural? • DEFINITIE:

  13. Care sunt regulile de calcul cu puteri? • 1. • 2. • 3. • 4.

  14. Care este ordinea efectuarii operatiilor cu numere rationale?

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