Formulele puterilor

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I. Puterea

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aⁿ

a) se citeşte: a la puterea n;

b) a este baza;

c) n este exponentul.

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2. Formulele puterilor

Puterile au următoarele formule de calcul:

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a) a^m · aⁿ = a^m+n

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b) a^m : aⁿ = a^m/aⁿ = a^m-n

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c) (a^m)ⁿ = a^m·n

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d) ⁿ√a^m = a^m/n

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e) 1/aⁿ = a^-n

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f) (a · b)ⁿ = aⁿ · bⁿ

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g) (a : b)ⁿ = (a/b)ⁿ = aⁿ/bⁿ

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h) 0^m = 0, (∀)m ;  0⁰ nu se poate efectua.

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i) 1ⁿ = 1, (∀)n

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j) a⁰ = 1, dacă a ≠ 0

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k) a^-n = 1/aⁿ

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Formulele puterilor

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l) a^m·n = (a^m)ⁿ

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m) a^m/n = ⁿ√a^m

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n) a^m+n = a^m · aⁿ

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o) a^m-n = a^m : aⁿ

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