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Logarithmic equations

Authored by Edisa Zilic

Mathematics

10th - 11th Grade

Used 32+ times

Logarithmic equations
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9 questions

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1.

FILL IN THE BLANK QUESTION

20 sec • 1 pt

What is the base of following logarithm:  log 125\log\ 125  

2.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

The existence conditions for the base of  logb a\log_{b\ }a  is

 b>0b>0  

 b=0b=0  

 a1a\ne1  

 b1b\ne1  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 log216=x\log_216=x  

 x=2x=2  

 x=8x=8  

 x=4x=4  

 x=3x=-3  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The domain of the following function is:
 f(x)=log3(2x)f\left(x\right)=\log_3\left(2-x\right)  

 x<2x<2  

 x>2x>2  

 x2x\le2  

 x2x\ge-2  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 log (3x+1)=0\log\ \left(3x+1\right)=0  

 00  

 11  

 33  

 13\frac{1}{3}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt


 log2log2log2x=0\log_2\log_2\log_2x=0  

0

2

4

10

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 log3(92x)+log3x=2\log_3\left(9-2x\right)+\log_3x=2  

 32, 3\frac{3}{2},\ 3  

 2, 32,\ 3  

 2,3-2,-3  

 29, 3\frac{2}{9},\ 3  

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