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Svojstva logaritama

Authored by Dragica Tomazetic

Mathematics

2nd Grade

Used 5+ times

Svojstva logaritama
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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Logaritam broja  x=a+bcx=\frac{a+b}{c}  uz bazu a jednako je:

 loga(a+b)+logac\log_a\left(a+b\right)+\log_ac  

 1+logab+logac1+\log_ab+\log_ac  

 loga(a+b)logac\log_a\left(a+b\right)-\log_ac  

 1+logablogac1+\log_ab-\log_ac  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vrijednost izraza  log16log4\frac{\log_{ }16}{\log_{ }4}  je:

2

 164\frac{16}{4}  

0.60206

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je  log4x=log35log34\log_4x=\frac{\log_35}{\log_34}  tada je x jednako

1.16096

 54\frac{5}{4}  

5

1.25

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vrijednost izraza  3log973^{\log_97}  je:

7

 7\sqrt{7}  

2.6

49

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vrijednost izraza  1+log34log316+2=\frac{1+\log_34}{\log_316+2}=  

 14\frac{1}{4}  

 12-\frac{1}{2}  

 1+log341+\log_34  

 12\frac{1}{2}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Odredi x ako je  log4x=12+log4a\log_4x=\frac{1}{2}+\log_4a  

 x=ax=\sqrt{a}  

 x=a2x=a^2  

 x=2x=2  

 x=2ax=2a  

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