Đề trắc nghiệm tóan
Quiz
•
Mathematics
•
10th Grade
•
Hard
Lan Nhi
Used 1+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tập nghiệm của bất phương trình x²–3x+2≥0
(1;2)
(-∞;1]U[2;+∞)
[1;2]
(-∞;1) U(2;+∞)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khoảng nghịch biến của hàm số y=x²–4x+3 là
(-∞;2)
(-∞;-4)
(-∞;4)
(-2;+∞)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình √x-3=5 có nghiệm là
X=32
X=8
X=2
X=28
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho parabol (P) : y= x²+4x+5. Điểm nào sau đây là đỉnh của (P)
I (2;1)
I (-2;0)
I (-2;1)
I (0;5)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tập nghiệm của phương trình √5x+6 =x-5 là
S= { 2;15}
S= ⃠⃠
S={15}
S={2}
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tứ giác ABCD, số vectơ khác vecto không có điểm đầu và điểm cuối là các đỉnh của tứ giác là
12
6
10
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu số tự nhiên có 3 chữ số
899
900
999
901
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