Invalsi e radicali

Invalsi e radicali

8th Grade

13 Qs

quiz-placeholder

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Invalsi e radicali

Invalsi e radicali

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

Marta Luzzana

Used 17+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La radice quadrata di

 64201664^{2016}   è

 820148^{2014}  

 810088^{1008}  

 64100864^{1008} 

 64201464^{2014}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2+3=5\sqrt{2}+\sqrt{3}=\sqrt{5}  

Vero

Falso

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2+3=5\sqrt{2+3}=\sqrt{5}  

Vero

Falso

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 22+32=5\sqrt{2^2}+\sqrt{3^2}=5  

Vero

Falso

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 22+32=5\sqrt{2^2+3^2}=\sqrt{5}  

Vero

Falso

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Nell'insieme dei numeri reali l'equazione

 x=x\sqrt{x}=-x  

non ha soluzioni

ha come unica soluzione x=0

ha come soluzioni soltanto 0 e 1

ha come soluzioni soltanto -1 e 1

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quale fra le seguenti uguaglianze è corretta, qualunque sia il numero reale che sostituisce la x?

x2=x\sqrt{x^2}=x

x2=±x\sqrt{x^2}=\pm x

x2=x\sqrt{x^2}=\left|x\right|

x2=±x\sqrt{x^2}=\pm x

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