Free Printable Stepenovanje 1

1.

Uprosti izraz: $a^5\cdot a^6:a^{-4}=$

a)

$a^{15}$

b)

$a^7$

c)

$a^3$

d)

$a^{-7}$

2.

$Izračunaj:\ \ \left(\frac{\text{2}}{\text{3}}\right)^{-2}$

a)

$\frac{\text{4}}{\text{9}}$

b)

$-\frac{\text{4}}{\text{9}}$

c)

$\frac{\text{9}}{\text{4}}$

d)

$-\frac{\text{9}}{\text{4}}$

3.

$Izračunaj:\ \ \left(-\sqrt{5}\right)^0+3^{-2}\cdot\left(\frac{\text{1}}{\text{9}}\right)^{-1}=$

a)

1

b)

$1\frac{\text{1}}{\text{9}}$

c)

$\sqrt{5}+\frac{\text{1}}{\text{9}}$

d)

2

4.

$Izračunaj:\ \ \left(2020^3\right)^0+0,1^{-2}\cdot10^{-1}$

a)

2

b)

1

c)

11

d)

2021

5.

$Ako\ je\ a=2^{12}\ i\ b=3^8\ \ sledeće\ tvrdjenje\ je\ tacno:$

a)

$a<b$

b)

$a>b$

c)

$a=b$

d)

$b<a$

6.

$Izracunaj:\ \ \left(m^{-2}\right)^3\cdot\left(m^3\right)^{-2}\cdot\left(m^{-4}\right)^2=$

a)

$m^{20}$

b)

$m^{-10}$

c)

$m^{10}$

d)

$m^{-20}$

7.

$Izračunaj:\ \left(\frac{1}{2}+\frac{\pi}{3}\right)^0-\left(\frac{1}{2}-\frac{\pi}{3}\right)^0$

a)

1

b)

2

c)

-1

d)

0

8.

$Uprosti\ izraz:\ \left(\frac{\text{a+b}}{\text{a-b}}\right)^3\cdot\left(\frac{\text{a-b}}{\text{a+b}}\right)^5:\left(\frac{\text{a-b}}{\text{a+b}}\right)^{-4}$

a)

$\left(\frac{a+b}{a-b}\right)^{-6}$

b)

$\left(\frac{a+b}{a-b}\right)^6$

c)

$\left(\frac{a-b}{a+b}\right)^{-5}$

d)

$\left(\frac{a-b}{a+b}\right)^5$

9.

$Izracunaj:\ \left(\frac{3}{2}\right)^{11}\cdot\left(\frac{8}{15}\right)^{11}\cdot\left(\frac{5}{4}\right)^{11}$

a)

$\frac{15}{4}$

b)

$\left(\frac{2}{3}\right)^{11}$

c)

1

d)

0

10.

$Izracunaj:\ \frac{4^2\cdot81\cdot2^3}{27^2\cdot2^5\cdot4}$

a)

$9$

b)

$\frac{1}{9}$

c)

$4$

d)

$\frac{1}{4}$

11.

$a^{-x}=...$

a)

$-a^x$

b)

$-a^{-x}$

c)

$-\frac{1}{a^x}$

d)

$\frac{1}{a^x}$

12.

Koji izraz nije tacan ?

a)

$2020^0=1$

b)

$\left(\frac{1}{5}\right)^{-2}=25$

c)

$\frac{3}{4}=\left(\frac{4}{3}\right)^{-1}$

d)

$0,01=10^{-1}$

13.

Izračunaj:

\left(\frac{1}{25}\right)^{-2}\cdot5^3\cdot\left(5^2\right)^{-3}=

a)

1

b)

$\frac{1}{5}$

c)

$5$

d)

$\frac{1}{25}$

14.

$m^0$ je tačno ako je...

a)

$m\in R$

b)

$m>0$

c)

$m=1$

d)

$m\ge0$

15.

$\left(a+b\right)^{-5}:\left(a+b\right)^{-3}\cdot\left(a+b\right)^2=$

a)

1

b)

0

c)

$\left(a+b\right)^2$

d)

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

Stepenovanje 1

Total questions: 15

Worksheet time: 8mins

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