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Logaritminės lygtys 11-1

Authored by Edita Balinskiene

Mathematics

11th Grade

Used 4+ times

Logaritminės lygtys 11-1
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19 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Išspręskite lygtį:

1,25

-

2.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Išspręskite lygtį:

log4 (2x+1) = log23.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Reiškinį 34 = 81 užrašykite naudodami logaritmą.

log34 = 81
log813 = 4
log381 = 4
log481 = 3

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Išspręskite lygtį:
lg(−2a + 9) = lg (7 − 4a) 

-5
-1
1
5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

log2(x + 5) = 3
Rask x?

3
4
5
6

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Išspręsk lygtį:

log5(4x-7) = log5(x+5).

x = 4

x = -4

x = 3

x = -2

7.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

 log4x = 2\log_4x\ =\ 2  

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