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Exponenciální, logaritmická funkce

Authored by Kateřina Kočvarová

Mathematics

9th - 12th Grade

Used 5+ times

Exponenciální, logaritmická funkce
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Do definičního oboru funkce nepatří:

 f: y=log2(x+3)f:\ y=\log_2\left(x+3\right)  

 00  

 3-3  

 11  

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Hodnota výrazu

 log5(25)3\log_5\left(25\right)^3  je rovna:

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Na obrázku je graf funkce:

y=(12)xy=\left(\frac{1}{2}\right)^x

y=(2)xy=\left(2\right)^x

y=(12)(x1)y=\left(\frac{1}{2}\right)^{\left(x-1\right)}

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Porovnej čísla a, b:

 a=log28a=\log_2\sqrt{8}  ,  b=log39b=\log_3\sqrt{9}  

 a=ba=b  

 a>ba>b  

 a<ba<b  

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

 52251(15)52=5^2\cdot25^{-1}\cdot\left(\frac{1}{5}\right)\cdot5^2=  


6.

FILL IN THE BLANK QUESTION

1 min • 1 pt


Řešením rovnice je číslo:
 2(x3)=142^{\left(x-3\right)}=\frac{1}{4}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Číslo (83)1,9\left(\frac{\sqrt{8}}{3}\right)^{1,9}  je:


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