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Exponenciais e Logaritmos - 2

Authored by Miguel Cruz

Mathematics

12th Grade

Used 9+ times

Exponenciais e Logaritmos - 2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Qual   eˊ   o   valor   deQual\ \ \ é\ \ \ o\ \ \ valor\ \ \ de   log82=?\log_82=?  

 13\frac{1}{3}  

 164\frac{1}{64}  

3

-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Qual   eˊ   a   soluça~o   da   equaça~o    ex1+1=4  ?Qual\ \ \ é\ \ \ a\ \ \ solução\ \ \ da\ \ \ equação\ \ \ \ e^{x-1}+1=4\ \ ?  

 ln (3+e)\ln\ \left(3+e\right)  

 ln (3e)\ln\ \left(3e\right)  

 ln3\ln3  

 e3+1e^3+1  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Qual eˊ a soluça~o da equaça~o  log3x+1=1  ?Qual\ é\ a\ solução\ da\ equação\ \ \log_3x+1=-1\ \ ?  

 2-2  

 19\frac{1}{9}  

 9-9  

 23-\frac{2}{3}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Se   logab=3 ,   enta~o     1logba      eˊ   igual a:Se\ \ \ \log_ab=3\ ,\ \ \ então\ \ \ \ \ 1-\log_ba\ \ \ \ \ \ é\ \ \ igual\ a:  

12

 23\frac{2}{3}  

-2

 13\frac{1}{3}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  limx+e4x12x=?\ \lim_{x\rightarrow+\infty}\frac{e^{4x}-1}{2x}=?  

 -\infty  

2

 ++\infty  

0

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

   log5(x1)1\ \ \log_5\left(x-1\right)\le1 

Assinala todos os valores que são solução da inequação

-1

6

4

0

1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Se logax=8  e  logay = 2, enta~o   2loga(xy)=?Se\ \log_ax=8\ \ e\ \ \log_ay\ =\ 2,\ então\ \ \ 2\log_a\left(\frac{x}{y}\right)=?  

12

8

6

32

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