Logaritmo: Definição e propriedades

Logaritmo: Definição e propriedades

10th - 12th Grade

8 Qs

quiz-placeholder

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Logaritmo: Definição e propriedades

Logaritmo: Definição e propriedades

Assessment

Quiz

Mathematics

10th - 12th Grade

Medium

Created by

Fernanda Meredyk

Used 27+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Se vale  log12x=2\log_{\frac{1}{2}}x=-2  então  x+x² \sqrt{x}+x²\   é:

4

16

18

20

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual a condição de existência do  log2(x1)\log_2\left(x-1\right)  

 x>1x>1  

 x>1 e x2x>1\ e\ x\ne2  

 x>1x>-1  

 x1x\ne1  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

O valor de  \log_416  é:

4

16

2

64

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A expressão 
   logb(xy)\log_b\left(xy\right)   é igual a:

 logbx÷logby\log_bx\div\log_by  

 logbxlogby\log_bx-\log_by  

 logbx.logby\log_bx.\log_by  

 logbx+logby\log_bx+\log_by  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Fuvest adaptada: Sendo log2blog2a=3\log_2b–\log_2a=3  o quociente  ba\frac{b}{a}   vale:

8

6

27

3

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A forma exponencial correta de  logba=x \log_ba=x\   é:

 b.x=ab.x=a  

 bx=ab^x=a  

 ax=ba^x=b  

 xb=ax^b=a  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 logππ1000 \log_{\pi}\pi^{1000\ }  é igual a:

 π\pi  

 π1000\pi^{1000}  

 10210^2  

 10310^3  

8.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sendo log 2 = 0,301 e log 7 = 0,845, qual será o valor de log 56?

1,447

1,146

1,748

14