
bất phương trình
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Lương Phạm
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bất phương trình nào sau đây là bất phương trình bậc nhất hai ẩn?
-2x+y+3>0
2x+3y+z>0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các cặp số sau đây, cặp nào không thuộc nghiệm của bất phương trình:
x - 4y + 5 > 0
(-5;0)
(-2:1)
(0;0)
(1;-3)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ bất phương trình nào dưới đây là hệ bất phương trình bậc nhất hai ẩn?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(0;0)
(1;2)
(7;5)
(3;1)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
min F = 1 khi
x=2; y=3
min F = 2 khi
x=0; y=2
min F = 3 khi
x=1; y=4
min F = 0 khi
x=0; y = 0
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