Quiz about Numere reale

Question 1

$$\frac{-15}{3}$$ $$\in$$

Accepted Answer

Z

Answer

N

Answer

R\Q

Question 2

$$\sqrt[]{1\ \frac{24}{25}}$$ este

Accepted Answer

rational

Answer

natural

Answer

intreg

Answer

irational

Question 3

dintre numerele a= $$\sqrt[]{10}$$ si b=3 mai mare este

Accepted Answer

a

Answer

b

Answer

sunt egale

Question 4

$$\sqrt[]{24}=$$

Accepted Answer

$$2\sqrt[]{6}$$

Answer

$$3\sqrt[]{8}$$

Answer

$$8\sqrt[]{3}$$

Answer

$$6\sqrt[]{2}$$

Question 5

Daca $$\sqrt[]{a+7}=4$$ , atunci a=

Accepted Answer

9

Answer

3

Answer

4

Answer

7

Question 6

Rezultatul calculului $$\left(\sqrt[]{144}-\sqrt[]{49}\right):\left(\sqrt[]{121}-\sqrt[]{36}\right)$$ este

Accepted Answer

1

Answer

0

Answer

5

Answer

2

Question 7

Introducand factorii sub radical, $$3\sqrt[]{5}$$ este egal cu:

Accepted Answer

$$\sqrt[]{45}$$

Answer

$$\sqrt[]{75}$$

Answer

$$\sqrt[]{35}$$

Answer

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

Question 8

$$\sqrt[]{3^2+4^2}-\sqrt[]{10^2-8^2}$$ =

Accepted Answer

-1

Answer

12

Answer

1

Answer

5

Question 9

$$\sqrt[]{500}=$$

Accepted Answer

$$10\sqrt[]{5}$$

Answer

$$5\sqrt[]{10}$$

Answer

$$5\sqrt[]{2}$$

Answer

$$20\sqrt[]{5}$$

Question 10

Cel mai mare numar natural mai mic decat $$\sqrt[]{20}$$ este:

Accepted Answer

4

Answer

5

Answer

10

Answer

19

Question 11

Valoarea de adevar a propozitiei " $$\sqrt[]{2\frac{7}{9}}$$ $$\in$$ Q" este

Accepted Answer

adevarat

Answer

fals

Question 12

Cel mai mare numar intreg mai mic decat $$-\sqrt[]{7}$$ este

Accepted Answer

-3

Answer

0

Answer

-1

Answer

-2

Question 13

Dintre numerele a= $$-5\sqrt[]{2}$$ si b= $$-4\sqrt[]{3}$$ este mai mare

Accepted Answer

b

Answer

a

Answer

sunt egale

Question 14

Numarul $$\sqrt[]{5-y}\ $$ este irational pentru y=

Accepted Answer

0

Answer

1

Answer

4

Answer

5

Question 15

$$\sqrt[]{49}$$ NU este numar

Accepted Answer

irational

Answer

natural

Answer

real

Answer

rational

Numere reale

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