
untitled
Quiz
•
Specialty
•
9th Grade
•
Practice Problem
•
Hard
Quyền Hồng
FREE Resource
Enhance your content in a minute
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Căn bậc hai số học của 9 là:
-3
3
81
-81
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức √16 bằng
4 và -4
4
-8
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
So sánh 9 và √79 . Ta có kết luận
9<√79
9=√79
9>√79
Không so sánh được
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Căn bậc ba của -125 là:
5
-5
±5
-25
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các khẳng định dưới đây, khẳng định nào đúng?
Căn bậc hai số học của 1/25 là ±1/5
Căn bậc hai của 0,04 là 0,01
Nếu a>1 thì √a >1
Nếu a>0 thì a=√a
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Khẳng định nào sau đây là sai
√6>4
2√3>3√3
2√6>4
4√2<5√3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0
-10
50
10
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