ค่าสัมบูรณ์

ค่าสัมบูรณ์

9th Grade

15 Qs

quiz-placeholder

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ค่าสัมบูรณ์

ค่าสัมบูรณ์

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

นางสาววันเพ็ญ รำไพรุจิพงศ์

Used 13+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

เซตคำตอบของสมการ  x=5\left|x\right|=5  

{-5}

{5}

{-5,5}

ถูกทุกข้อ

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ข้อใดไม่ถูกต้อง

 42=(4)2\left|-4\right|^2=\left(-4\right)^2  

 47=74\left|4-7\right|=\left|7-4\right|  

 3+43+4\left|-3+4\right|\ge\left|-3\right|+\left|4\right|  

 366=366\left|\frac{-36}{6}\right|=\frac{\left|-36\right|}{\left|6\right|}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

เซตคำตอบของสมการ 4x+3=15\left|4x+3\right|=15  

 {3}\left\{3\right\}  

 {92}\left\{\frac{-9}{2}\right\} 

 {92,3}\left\{\frac{-9}{2},3\right\}  

 {92,3}\left\{\frac{9}{2},-3\right\}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

เซตคำตอบของสมการ x+23=4\left|\frac{x+2}{3}\right|=4 ตรงกับข้อใด

 {14,10}\left\{-14,10\right\}  

 {14,10}\left\{14,-10\right\}  

 {18,6}\left\{-18,6\right\}  

 {6,18}\left\{6,-18\right\}  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 2x3=2x3\left|2x-3\right|=2x-3  

เซตคำตอบของสมการ

 (,32]\left(-\infty,\frac{3}{2}\right]  

 [32,)\left[\frac{3}{2},\infty\right)  

 (32,)\left(\frac{3}{2},\infty\right)  

 (,32)\left(-\infty,\frac{3}{2}\right)  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

เซตคำตอบของสมการ 4x3=5\left|4x-3\right|=-5  

 {}\left\{\right\}  

 {12,2}\left\{\frac{-1}{2},2\right\}  

 {2,12}\left\{-2,-\frac{1}{2}\right\}  

 {2,12}\left\{-2,\frac{1}{2}\right\}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

เซตคำตอบของสมการ x3=3x\left|x-3\right|=3-x  

 (,3]\left(-\infty,3\right]  

 (,3)\left(-\infty,3\right)  

 [3,)\left[3,\infty\right)  

 (3,)\left(3,\infty\right)  

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