三維空間的三角函數應用
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
賴珍寧 賴珍寧
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
在三維空間中,如果一個三角形的三個邊長分別為3、4、5,求其最大角的餘弦值。
1.2
0.8
0.3
0.6
2.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
一個三角形在三維空間中的三個頂點坐標分別為A(1, 2, 3)、B(4, 5, 6)、C(7, 8, 9),求角ABC的正弦值。
2.645
3.567
1.732
0.000
3.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
已知三維空間中一個三角形的三個角分別為30°、60°、90°,求其最長邊的長度。
最長邊的長度為90度對應的邊
最長邊的長度為30度對應的邊
最長邊的長度為60度對應的邊
最長邊的長度為45度對應的邊
4.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
在三維空間中,如果一個三角形的三個角分別為45°、45°、90°,求其最短邊的長度。
最短邊的長度為a
最短邊的長度為d
最短邊的長度為c
最短邊的長度為b
5.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
一個三角形在三維空間中的三個頂點坐標分別為A(2, 3, 4)、B(5, 6, 7)、C(8, 9, 10),求角BAC的餘弦值。
-0.019
0.5
-1.5
1.2
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
已知三維空間中一個三角形的三個邊長分別為6、8、10,求其最小角的正弦值。
1.5
1.2
0.8
0.6
7.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
在三維空間中,如果一個三角形的三個角分別為60°、60°、60°,求其最大邊的長度。
最大邊的長度為其他兩邊的長度的四倍
最大邊的長度為其他兩邊的長度的一半
最大邊的長度為其他兩邊的長度的兩倍
最大邊的長度為其他兩邊的長度的三倍
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