
แบบทดสอบเรื่องช่วง อสมการพหุนาม สมการค่าสัมบูรณ์ ชุดที่2
Authored by Surachet Laowjunta
Mathematics
10th Grade
Used 176+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
กำหนด A = (0,7] , B = [-2 , 9) จงหา B - A
[ -2 , 9)
(0 , 7]
[-2 ,0] (7 , 9)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ข้อใดไม่ถูกต้อง
[2 , 5) ∪ {-1 , 5} = {-1} ∪ [2 , 5]
(1 , 4) ∩ (4 , 6) = { }
[2 , 5] – (1 , 3) = [3 , 5]
(1 , 5) – (1 , 7) = [5 , 7)
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ถ้า 2 < x < 6 และ 1 < y < 4 แล้วข้อใดถูกต้อง
1 < y - x < 2
0 < < 16
< < 6
1 < xy < 24
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ข้อใดถูกต้อง
ถ้า a > 0 แล้ว –a < 0
ถ้า a + 4 > 3 แล้ว a < –1
ถ้า a < b แล้ว
ถ้า a < 7 แล้ว 5a > 35
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ข้อใดเป็นคำตอบของอสมการ (3 - x)(x + 2) < 0
[ -3 , 2 ]
(-3 , 2)
(-2 , 3)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
ข้อใดเป็นคำตอบของอสมการ
(-6 , 1)
[-6 , 1]
[-1 , 6]
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
จงหาเซตคำตอบของสมการ ∣10−2x∣ = 7
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