Radical de ordin n Flashcards

1
Q

Definirea radicalului de ordin par

A
rad de ordin n din a > 0
rad de ordin n din 0 = 0
(ron din a) la n = a
a > 0
n >= 2
n apartine multimii nr nat diferit de 0
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2
Q

Definirea radicalului de ordin impar

A

n apartine multimii nr nat diferit de 0
n >= 3
a apartine lui R

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3
Q

Rationalizare

A

FCP: a la 3 +/- b la 3 = (a-b)(a la2 +/- ab + b la 2)

a la n +/- b la n = (a +/- b)(a la n-1 a la n-2ba la n-3b la 2**b la n-1)

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