matematica Flashcards

1
Q

dimmi due modi di identificare gli insiemi

A

ELENCO di oggetti
PROPRIETA degli oggetti

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2
Q

dimmi somma e differenza di due cubi

A

a^3+b^3= (a+b) (a^2-ab+b^2)
a^3-b^3= (a-b)(a^2+ab+b^2)

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3
Q

coefficiente binomiale

A

(n) n!
( ) =———-
(k). k!(n-k)!

(a+b)^2= a^n-k b^k

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