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funkce

Authored by Kateřina Ježková

Mathematics

3rd Grade

Used 6+ times

funkce
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10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

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Jakou má logaritmická funkce 

 y=log12xy=\log_{\frac{1}{2}}x  vlastnost?

funkce klesající

funkce rostoucí

ani rostoucí ani klesající

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 y=logax, kde a(1;+)y=\log_ax,\ kde\ a\in\left(1;+\infty\right)  Co platí pro funkce

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3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

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Jaký má logaritmická funkce 

 y=log12xy=\log_{\frac{1}{2}}x  definiční obor?

 x(0;+)x\in\left(0;+\infty\right)  kladná reálná čísla

 xRx\in R  

 x(;0)x\in\left(-\infty;0\right)  

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

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Jaký má logaritmická funkce 

 y=log12xy=\log_{\frac{1}{2}}x   obor hodnot?

 H(x)(0;+)H\left(x\right)\in\left(0;+\infty\right)  

 H(x)RH\left(x\right)\in R  

 H(x)(;0)H\left(x\right)\in\left(-\infty;0\right)  

5.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

 log5125=\log_5125=  

(a)  

6.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

 log525=\log_525=  

(a)  

7.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

 log31=\log_31=  

(a)  

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