Test logaritmi

Test logaritmi

10th - 12th Grade

9 Qs

quiz-placeholder

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Test logaritmi

Test logaritmi

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Medium

Created by

Eniko Lorincz

Used 159+ times

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9 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 log416=\log_416=  

4

-4

2

1

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 log122+log28=\log_{\frac{1}{2}}2+\log_28=  

4

2

-1

5

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 2log25+6log62=2^{\log_25}+6^{\log_62}=  

8

12

7

0

4.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 log5252log333\log_525^2-\log_33^3  

-1

598

22

1

5.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Valoarea lui x pentru care există logaritmul:

 log7(x2+5x) \log_7\left(-x^2+5x\right)\   este:

 (5,0)\left(-5,0\right)  

 (0,5)\left(0,5\right)  

 (,0)(5,+)\left(-\infty,0\right)\cup\left(5,+\infty\right)  

 [0,5]\left[0,5\right]  

6.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 log210log225+log25=\log_210-\log_225+\log_25=  

1

-10

20

-1

7.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

 log3(7+2)+log3(72)\log_3\left(\sqrt{7}+2\right)+\log_3\left(\sqrt{7}-2\right)  

5

11

1

 14\sqrt{14}  

8.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 log2792\log_{27}9^2  

2

 23\frac{2}{3}  

 43\frac{4}{3}  

6

9.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

 log48\log_4\sqrt{8}  

 2\sqrt{2}  

 34\frac{3}{4}  

 43\frac{4}{3}  

 22