Reguli de calcul cu radicali Quiz

9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rezultatul calculului $\sqrt[]{9+16}=$

7

$\sqrt[]{7}$

5

$\sqrt[]{12}$

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rezultatul calculului $\sqrt[]{4\times121}=$

44

33

$\sqrt[]{22}$

22

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După scoaterea factorilor de sub radical numărul $\sqrt[]{48}$ devine ..

4 $\sqrt[]{3}$

12

8

3 $\sqrt[]{4}$

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După introducerea factorilor sub radical numărul $3\sqrt[]{5}$ devine

$\sqrt[]{15}$

15

$\sqrt[]{45}$

$\sqrt[]{225}$

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rezultatul calculului $\sqrt[]{80}\div\sqrt[]{5}=$

4

16

$\sqrt[]{20}$

4 $\sqrt[]{5}$

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Rezultatul calculului $\sqrt[]{0,75\times0,\left(3\right)}=$

$\sqrt[]{\frac{1}{12}}$

$\sqrt[]{\frac{15}{12}}$

$\frac{1}{2}$

$\frac{1}{4}$

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Dintre numerele a= $\sqrt[]{23}$ și b = 2 $\sqrt[]{6}$ mai mare este ......

a

b

sunt egale

nu se pot compara

8.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Se dă mulţimea A ={-2; $\sqrt[]{25}$ ; 0,3 ;7; $\sqrt[]{\frac{12}{3}}$ ;-2,(3) }.
A $\cap$ Z =

{-2}

{-2: $\sqrt[]{25}$ ; $\sqrt[]{\frac{12}{3}}$ ;7 }

$\left\{\Phi\right\}$

{-2; 7}

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului $\left|3\sqrt[]{7}-5\sqrt[]{3}\right|=$

$3\sqrt[]{7}-5\sqrt[]{3}$

- $3\sqrt[]{7}+5\sqrt[]{3}$

$-2\sqrt[]{4}$

-4

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Reguli de calcul cu radicali

Rezultatul calculului 9+16=\sqrt[]{9+16}=9+16​=

Rezultatul calculului 4×121=\sqrt[]{4\times121}=4×121​=

După scoaterea factorilor de sub radical numărul 48\sqrt[]{48}48​ devine ..

După introducerea factorilor sub radical numărul 353\sqrt[]{5}35​ devine

Rezultatul calculului 80÷5=\sqrt[]{80}\div\sqrt[]{5}=80​÷5​=

Rezultatul calculului 0,75×0,(3)=\sqrt[]{0,75\times0,\left(3\right)}=0,75×0,(3)​=

Dintre numerele a= 23\sqrt[]{23}23​ și b = 2 6\sqrt[]{6}6​ mai mare este ......

Se dă mulţimea A ={-2; 25\sqrt[]{25}25​ ; 0,3 ;7; 123\sqrt[]{\frac{12}{3}}312​​ ;-2,(3) }. A ∩\cap∩ Z =

Rezultatul calculului ∣37−53∣=\left|3\sqrt[]{7}-5\sqrt[]{3}\right|=​37​−53​​=

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Rezultatul calculului $\sqrt[]{9+16}=$

Rezultatul calculului $\sqrt[]{4\times121}=$

După scoaterea factorilor de sub radical numărul $\sqrt[]{48}$ devine ..

După introducerea factorilor sub radical numărul $3\sqrt[]{5}$ devine

Rezultatul calculului $\sqrt[]{80}\div\sqrt[]{5}=$

Rezultatul calculului $\sqrt[]{0,75\times0,\left(3\right)}=$

Dintre numerele a= $\sqrt[]{23}$ și b = 2 $\sqrt[]{6}$ mai mare este ......

Se dă mulţimea A ={-2; $\sqrt[]{25}$ ; 0,3 ;7; $\sqrt[]{\frac{12}{3}}$ ;-2,(3) }.
A $\cap$ Z =

Rezultatul calculului $\left|3\sqrt[]{7}-5\sqrt[]{3}\right|=$