Logaritmi - introducere

Logaritmi - introducere

10th Grade

10 Qs

quiz-placeholder

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Logaritmi - introducere

Logaritmi - introducere

Assessment

Quiz

Mathematics

10th Grade

Medium

CCSS
HSF.BF.B.5

Standards-aligned

Created by

Monica Dumitrache

Used 9+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scrieți egalitatea  24 = 162^4\ =\ 16   sub formă logaritmică:

 4 = log2164\ =\ \log_216  

 2=log1642=\log_{16}4  

 16=log2416=\log_24  

 4=log1624=\log_{16}2  

Tags

CCSS.HSF.BF.B.5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scrieți egalitatea  51 = 155^{-1}\ =\ \frac{1}{5}   sub formă logaritmică:

 5 = log1 155\ =\ \log_{-1}\ \frac{1}{5}  

 1=log5 15-1=\log_5\ \frac{1}{5}  

 15=log5(1)\frac{1}{5}=\log_5\left(-1\right)  

 5=log15(1)5=\log_{\frac{1}{5}}\left(-1\right)  

Tags

CCSS.HSF.BF.B.5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Să se scrie sub formă exponențială egalitatea:  log525=2\log_525=2  


 252=525^2=5  

 25=252^5=25  

 52=255^2=25  

 225=52^{25}=5  

Tags

CCSS.HSF.BF.B.5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Să se scrie sub formă exponențială egalitatea:  logab=c\log_ab=c  


 cb=ac^b=a  

 bc=ab^c=a  

 ab=ca^b=c  

 ac=ba^c=b  

Tags

CCSS.HSF.BF.B.5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Condițiile de existență pentru logaritmul logxy\log_xy sunt : 


 x>0, x1, y>0x>0,\ x\ne1,\ y>0  

 x<0, x1, y>0x<0,\ x\ne1,\ y>0  

 x>0, x1, y<0x>0,\ x\ne1,\ y<0  

 x>0, x=1, y>0x>0,\ x=1,\ y>0  

Tags

CCSS.HSF.BF.B.5

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Logaritmul zecimal „lg x” este logaritmul cu baza ...

Tags

CCSS.HSF.BF.B.5

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