对数运算法则2

对数运算法则2

10th - 12th Grade

8 Qs

quiz-placeholder

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对数运算法则2

对数运算法则2

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Hard

Created by

Woo Min

Used 11+ times

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8 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

 y=log5125y=\log_5125  ,则y的值为?

2.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

 log31=x\log_31=x  ,求x 的值。

3.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

 logy 32=5\log_y\ 32=5  ,求y 的值。

4.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

 log9 y=12\log_9\ y=-\frac{1}{2}  ,求y 的值。

5.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

 log4 18=m\log_4\ \frac{1}{8}=m  ,求m 的值。

6.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

 y=log51 , x=log2 8y=\log_51\ ,\ x=\log_2\ 8  ,求 x + y 的值。

7.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

y=log164 , x=log2 18y=\log_{16}4\ ,\ x=\log_2\ \frac{1}{8} ,求 x - y 的值。

8.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

已知 y=log3 19 , x=log7 17y=\log_3\ \frac{1}{9}\ ,\ x=\log_7\ \frac{1}{7}  , 求 xy 的值。