Free Printable Operazioni con i radicali (2)

1.

$\sqrt{a}+\sqrt{a}=$

a)

$\sqrt{2a}$

b)

$2\sqrt{a}$

c)

$\sqrt{a^2}$

d)

nessuna delle precedenti

2.

$\sqrt{a}\cdot^3\sqrt{b}=$

a)

$^6\sqrt{ab}$

b)

$^6\sqrt{a^3b^2}$

c)

$^3\sqrt{ab}$

d)

$^6\sqrt{a^2b^3}$

3.

$\sqrt{8x^3y^6}=$

a)

$4\sqrt{xy^3}$

b)

$4xy^{3\ }\sqrt{x}$

c)

$2xy^3\ \sqrt{x}$

d)

$2xy^{3\ }\sqrt{2x}$

4.

$^3\sqrt{8}\ +5\ ^3\sqrt{2}=$

a)

$7\ ^3\sqrt{2}$

b)

$5\ ^3\sqrt{10}$

c)

$13\ ^3\sqrt{2}$

d)

non si possono sommare

5.

$^3\sqrt{24}-\ ^3\sqrt{3}=$

a)

$^3\sqrt{21}$

b)

$21$

c)

$^3\sqrt{3}$

d)

$7^{\ 3}\sqrt{3}$

6.

$^5\sqrt{xy^2}\div\ ^3\sqrt{y}$

a)

$\sqrt{xy}$

b)

$^{15}\sqrt{xy}$

c)

$^{15}\sqrt{x^3y}$

d)

$^{15}\sqrt{\frac{x^3}{y}}$

7.

Il numero
$\sqrt{200}$ è uguale a

a)

$2\sqrt{5}$

b)

$5\sqrt{2}$

c)

$2\sqrt{10}$

d)

$10\sqrt{2}$

8.

$\sqrt{\sqrt{\sqrt{5}}}=$

a)

$^4\sqrt{5}$

b)

$^5\sqrt{5}$

c)

$^6\sqrt{5}$

d)

$^8\sqrt{5}$

9.

$\left(2\ \sqrt{3}\right)^2=$

a)

$4\sqrt{3}$

b)

$6$

c)

$12$

d)

$6\sqrt{3}$

10.

L'espressione $^4\sqrt{a^2+b^2}$ è equivalente a

a)

$\sqrt{a^2+b^2}$

b)

$\sqrt{a+b}$

c)

$^6\sqrt{\left(a^2+b^2\right)^2}$

d)

$^8\sqrt{\left(a^2+b^2\right)^2}$

Operazioni con i radicali (2)

Total questions: 10

Worksheet time: 20mins

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