
Tỉ số lượng giác của góc nhọn

Quiz
•
Mathematics
•
9th Grade
•
Hard
Hong Pham
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính giá trị sin của góc 30 độ.
1/2
√3/2
0
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính giá trị cos của góc 45 độ.
0
√2/2
1/2
√3/2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính giá trị tan của góc 60 độ.
0
√3
1
√2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sử dụng định lý Pythagore để tính cạnh huyền của tam giác vuông có hai cạnh góc vuông lần lượt là 3 và 4.
6
8
7
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải bài toán lượng giác: Tìm sin, cos, tan của góc 15 độ.
tan(15°) = \(\frac{1}{\sqrt{3}}\)
sin(15°) = \(\frac{\sqrt{3}}{2}\)
sin(15°) = \(\frac{\sqrt{6} - \sqrt{2}}{4}\), cos(15°) = \(\frac{\sqrt{6} + \sqrt{2}}{4}\), tan(15°) = \(\frac{\sqrt{6} - \sqrt{2}}{\sqrt{6} + \sqrt{2}}\)
cos(15°) = \(\frac{1}{2}\)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính giá trị sin của góc 90 độ.
1
0
1/2
√2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính giá trị cos của góc 0 độ.
1
0
1.5
-1
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