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ค่าสัมบูรณ์

Authored by Julasak cockpim

Mathematics

11th Grade

Used 10+ times

ค่าสัมบูรณ์
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11 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

เซตคำตอบของสมการ x+2=2x+5\left|x+2\right|=-2x+5  เป็นสับเซตของข้อใด

 [0,7]\left[0,7\right]  

 1x<7-1\le x<7  

 (1,7)\left(1,7\right)  

 (,1)(2,)\left(-\infty,-1\right)\cup\left(2,\infty\right)  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

เซตคำตอบของ  x+1x3=3\left|\frac{x+1}{x-3}\right|=3   ตรงกับข้อใด

 {2,5}\left\{-2,5\right\}  

 {2,5}\left\{-2,-5\right\}  

 {2,5}\left\{2,-5\right\}  

 {2,5}\left\{2,5\right\}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

เซตคำตอบของ   x1=2x5\left|x-1\right|=2x-5  ตรงกับข้อใด

 {2}\left\{2\right\}  

 {4}\left\{4\right\}  

 {2,4}\left\{2,4\right\}  

 {}\left\{\right\}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

เซตคำตอบของ   3x1=x5\left|3x-1\right|=\left|x-5\right|  ตรงกับข้อใด

 {32}\left\{\frac{3}{2}\right\}  

 {2}\left\{-2\right\}  

 {2,32}\left\{-2,\frac{3}{2}\right\}  

 {}\left\{\right\}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

เซตคำตอบของ  2x+3=x12\left|x+3\right|=\left|x-1\right|   ตรงกับข้อใด

 {7,53}\left\{-7,\frac{5}{3}\right\}  

 {53}\left\{\frac{-5}{3}\right\}  

 {7,53}\left\{-7,\frac{-5}{3}\right\}  

 {7}\left\{-7\right\}  

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

 1<x<91<x<9  มีความหมายเหมือนกับข้อใด

 x<9\left|x\right|<9  

 x>1\left|x\right|>1  

 1<x<91<\left|x\right|<9  

 x5<4\left|x-5\right|<4  

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

เซตคำตอบของอสมการ 2x3<4\left|2x-3\right|<4 คือข้อใด 

 (3.5,4.5)\left(3.5,4.5\right)  

 (0,4.5)\left(0,4.5\right)  

 (0.5,2.5)\left(-0.5,2.5\right)  

 (0.5,3.5)\left(-0.5,3.5\right)  

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