
CANVA
Authored by Nguyễn Quỳnh
Mathematics
10th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 20 pts
Cho phương trình 2x - y = 4. Tập nghiệm của phương trình là:
{2x-4; ∣ x ∊ ℝ }
{x;2x-4}
{2;0}
∅
2.
MULTIPLE CHOICE QUESTION
10 sec • 20 pts
Hệ phương trình gồm: 2x+3y=4 và -x+y=2
Có nghiệm duy nhất là (8/5;2/5)
Có vô số nghiệm
Vô nghiệm
Có nghiệm duy nhất là (-2/5;8/5)
3.
MULTIPLE CHOICE QUESTION
10 sec • 20 pts
Hệ phương trình: 2x-5y+z=10; x+2y-3z=10; -x+3y+2z=-16
(2;-2)
(-2;2;-4)
(2;-2;-4)
(2;-1;1)
4.
MULTIPLE CHOICE QUESTION
10 sec • 20 pts
Cho hệ phương trình có tham số m:
mx+y=m
x+my=m
Hệ có nghiệm duy nhất khi:
m ≠ 1
m ≠ -1
m ≠ ±1
m = ±1
5.
MULTIPLE CHOICE QUESTION
10 sec • 20 pts
Cho hệ phương trình có tham số m:
mx+y=m
x+my=m
Hệ vô nghiệm khi
m = 0
m = 1
m = -1
∀ m ∊ ℝ
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