
Domini e Scomposizioni
Authored by MORETTI NICOLETTA-D
Mathematics
12th Grade

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale tra questi è il dominio della funzione 1 / (x - 3)?
Tutti i reali
Tutti i reali eccetto 3
x ≠ 0
x > 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quanto vale il prodotto notevole (x + 2)(x - 2)?
x^2 - 4
x^2 + 4
x^2 - 2x
x^2 - 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è la scomposizione di x^2 + 5x + 6?
(x + 2)(x + 3)
(x - 2)(x - 3)
(x + 1)^2
Non si può scomporre
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è l’m.c.m. tra x^2 - 1 e x^2 - 2x + 1?
(x + 1)(x - 1)(x - 1)
x^4 - 1
(x - 1)^2
x^2 - 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quanto vale (x^2 - 4)/(x + 2)?
x - 2
x + 2
x^2 + 4
Non si può semplificare
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se x = 2, qual è il valore di (x^2 + 2x)/x?
6
8
4
2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è il risultato della somma 1/x + 1/(x+1)?
2/x
2x+1/(x(x+1))
2x+1/(x+x+1)
(2x+1)/(x(x+1))
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