Scomposizione di polinomi e frazioni algebriche

Scomposizione di polinomi e frazioni algebriche

1st Grade

20 Qs

quiz-placeholder

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Scomposizione di polinomi e frazioni algebriche

Scomposizione di polinomi e frazioni algebriche

Assessment

Quiz

Mathematics

1st Grade

Practice Problem

Hard

Created by

Vincenzo Lombardi

Used 21+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

La condizione di esistenza della frazione algebrica   a+1a2\frac{a+1}{a-2}  è :

   a2a≠-2  

 a2a≠2  

 a1a≠-1  

 a1/2a≠1/2  

 a1/2a≠-1/2  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual è il risultato della semplificazione della frazione algebrica   (3a26ab)/(3a2)(3a^2-6ab)/(3a^2)  (con  a0a\ne0    )?

 6ab-6ab  

  2b-2b  

  (a2b)/3a(a-2b)/3a  

 (a2b)/a(a-2b)/a  

 (a2b)/3(a-2b)/3  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual è il risultato di   1/(ab)1/a1/(a-b)-1/a    (con   a0 , aba\ne0\ ,\ a\ne b  )?

 1/(b)1/(-b)  

 b/a(ab)b/a(a-b)  

 00  

 (b)/(ab)(-b)/(a-b)  

 1/(2ab)1/(2a-b)  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Determina il risultato dell’espressione  2/3a+1/4a1/2a2/3a+1/4a-1/2a  , con  a0a\ne0    

 17/12a17/12a  

 1/12a1/12a  

 5/12a5/12a  

 1/2a1/2a  

 1/12a-1/12a  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 La frazione algebrica   (x3+2x2x2)/(x+1)(x^3+2x^2-x-2)/(x+1)  (con   x1x\ne-1   ) si semplifica nella seguente espressione:

 x1x-1  

   x+2x+2  

 x2+x2x^2+x-2  

 x+1x+1  

 x2x+2x^2-x+2  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Il risultato della moltiplicazione   a3bc22b2c4a2c2aba3c2b\frac{a^3bc^2-2b^2c}{4a^2c}\cdot\frac{2ab}{a^3c-2b}    (con   a0a\ne0   ,  c0c\ne0     e   a3c2ba^3c\ne2b   ) è:

 11  

 b2-b^2  

 b2/2a-b^2/2a  

 2ba2ba  

 b2/2ab^2/2a  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

La divisione  5y23xy+12x4: 3xy+3xxy\frac{5y^2-3xy+1}{2x-4}:\ \frac{3xy+3x}{xy}  è eseguibile se:

 x0y0x≠0∧y≠0  

 x2x0x≠2∧x≠0  

 x0x2y0x≠0∧x≠-2∧y≠0  

 x0x2y0x≠0∧x≠2∧y≠0  

 x0x2y0y1                                         x≠0∧x≠2∧y≠0∧y≠-1\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \   

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