Logarytmy

Logarytmy

1st Grade

15 Qs

quiz-placeholder

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Logarytmy

Logarytmy

Assessment

Quiz

Mathematics

1st Grade

Medium

Created by

Agnieszka Klimas

Used 30+ times

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15 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Wyrażenie

 log4(2x1)\log_4\left(2x-1\right)  jest określone dla wszystkich liczb spełniających warunek:

 x(,12)x\in\left(-\infty,\frac{1}{2}\right)  

 x(12,)x\in\left(\frac{1}{2},\infty\right)  

 x(,0)x\in\left(-\infty,0\right)  

 x<0, x\in<0,\ \infty  )

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Wyrażenie

 logx217\log_{x^2}17  jest określone dla wszystkich liczb spełniających warunek

 xR {1,0,1}x\in R\ \left\{-1,0,1\right\}  

 x(0, 1)x\in\left(0,\ 1\right)  

 x(0, )x\in\left(0,\ \infty\right)  

 xRx\in R  

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Dane jest wyrażenie

 logx264=3\log_{x^2}64=3  . Oblicz x.

x=2

x=2 lub x=-2

x=8

x=8 lub x=-8

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Liczba

 c=log32c=\log_32  . Wtedy

 c3=2c^3=2  

 3c=23^c=2  

 32=x3^2=x  

 c2=3c^2=3  

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Suma  log816+1\log_816+1  jest równa

3

 32\frac{3}{2}  

 log817\log_817  

 73\frac{7}{3}  

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 log222\log_{\sqrt{2}}2\sqrt{2}  jest równa

Liczba

 32\frac{3}{2}  

 22  

 52\frac{5}{2}  

3

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 log496log46=\log_496-\log_46=  

 log490\log_490  

 44  

2

 log964log64\log_{96}4-\log_64  

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