Cho số thực a > 0. Số nào sau đây là căn bậc hai số học của a?
ÔN TẬP HỌC KÌ I

Quiz
•
Mathematics
•
9th Grade
•
Hard
Hồng Phạm
Used 2+ times
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97 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cho số thực a > 0. Căn bậc hai số học của a là x khi và chỉ khi
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Số nào sau đây là căn bậc hai số học của số a = 0,36
0,6
- 0,6
0,06
- 0,06
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
x < 20
x < 2
0 < x < 20
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
x = 15
x = 225
x = -15
x = 25
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