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Logarit

Authored by Tuyet Nhung

Mathematics

1st - 5th Grade

Used 692+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 log12 12=\log_{\frac{1}{2}}\ \frac{1}{2}=  

3

2

1

0

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 log51=\log_51=  

0

1

2

5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 log133\log_{\frac{1}{3}}3  =

3

-1

1

9

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 log4(4)5\log_4\left(4\right)^5  

16

5

4

0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2log272^{\log_27}  =

2

49

7

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cho                

 a,b1,b2>0, a1a,b_1,b_2>0,\ a\ne1  
Chọn công thức đúng trong các công thức sau:

 loga (b1.b2)=loga b1.loga b2\log_a\ \left(b_1.b_2\right)=\log_a\ b_1.\log_a\ b_2  

 loga (b1.b2)=loga b1+loga b2\log_a\ \left(b_1.b_2\right)=\log_a\ b_1+\log_a\ b_2  

 loga (b1.b2)=loga b1loga b2\log_a\ \left(b_1.b_2\right)=\log_a\ b_1-\log_a\ b_2  

 loga (b1.b2)=loga (b1+ b2)\log_a\ \left(b_1.b_2\right)=\log_a\ \left(b_1+\ b_2\right)  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 log5125=\log_5125=  

3

5

125

25

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