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Логарифмические уравнения и неравенства

Authored by Гулсара Кувандыкова

Mathematics

11th Grade

Used 9+ times

Логарифмические уравнения и неравенства
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5 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Решите уравнение: lgx=lg2+lg5

0

1

10

7

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Какое число НЕ является решением неравенства lg(x+2)>lg7?

10

0

6

8

3.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Решите уравнение: ln(x2+4)=ln(4x)

4

-4

-2

2

4.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Решите неравенство: ln(x2-9)<ln(8x)

(-9; 1)

(-1; 9)

(1; +∞)

(9; +∞)

5.

MULTIPLE CHOICE QUESTION

45 sec • 3 pts

Решите уравнение: xlgx=10000

-4; 4

-2; 2

-100; 100

0,01; 100

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