Tập xác định của hàm số y= 2cosx−1 là

Câu hỏi Toán học

Quiz
•
Other
•
11th Grade
•
Hard
Kendy Gaming
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
D=R
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Họ nghiệm của phương trình sinx =−1 là
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy số (u,) được gọi là dãy số tăng nếu với mọi số tự nhiên n≥1 ta luôn có:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy nào sau đây là một cấp số nhân?
1,2,3,4,...
1,3,5,7,...
2,4,8,16
2, 4, 6, 8...
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5
1
-2
7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hàm số nào dưới đấy liên tục trên R ?
y=1-cotx
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