
Toán 9

Quiz
•
Mathematics
•
9th Grade
•
Easy
Lan Nguyễn
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Căn bậc hai của một số a không âm là
a2
-√a
√a
±√a
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Biểu thức √1-2x xác định khi:
x > 1/2
x² ≥ 1/2
x < 1/2
x ≤ 1/2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tam giác ABC vuông tại A khi đó cos B =
AB/BC
AC/BA
BC/AB
AC/BC
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
√441 + √196
33
32
34
35
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4
2√2
3+2√2÷2
5√2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chọn khẳng định đúng về đồ thị hàm số y = ax + b (a ≠ 0)
Là đường thẳng đi qua gốc tọa độ
Là đường thẳng song song với trục hoành
Là đường thẳng đi qua hai điểm A(0;b) B(-b/a;0) với b ≠ 0
Là đường cong đi qua gốc tọa độ
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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