
ÔN TẬP HK I

Quiz
•
Mathematics
•
8th Grade
•
Medium
Lê Mai
Used 2+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6
- 6
± 6
18
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cặp số nào sau đây là nghiệm của phương trình 2x - y = 1
(1; -1)
(-1; 1)
(-1; -1)
(1; 1)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cặp số nào là nghiệm của phương trình x-y=2
(1; - 1)
(-2; 1)
(2; 1)
(-1; -1)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3/5
4/3
3/4
4/5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đẳng thức nào sau đây là đúng
sin 50° = cos 30°
cot 50° = tan 45°
tan 40° = cot 60°
sin 60° = cos 30°
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tam giác ABC vuông tại A (hình 2), khi đó:
AC = AB.tanC.
AC = BC.sinC
AC = BC.cosC.
AC = AB.cotB.
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