Tập nghiệm của bất phương trình x2 + 4x + 4 > 0 là:
ÔN TẬP GHKII 10A3

Quiz
•
Mathematics
•
10th Grade
•
Medium
Hieu Trong
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(– 2; + ∞)
(– ∞; – 2)
(– ∞; – 2)∪(– 2; + ∞)
(– ∞; + ∞)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
9
10
11
12
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Có bao nhiêu cách sắp xếp 35 học sinh lớp 10A3 vào 35 vị trí ngồi (không ngồi thành bàn tròn) trong lớp học?
35!
35
34!
9998
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hiếu và Danh cùng 7 bạn khác rủ nhau đi xem bóng đá. Số cách xếp nhóm bạn trên vào 9 chỗ ngồi hàng ngang là
9.(8!)
8!
7.8!
7!
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