0331_高二預習_橢圓畫圖
Interactive Video
•
Mathematics
•
11th Grade
•
Medium
Chi weng Chao
Used 1+ times
FREE Resource
3 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
思考為什麼圖中紅線和藍線相等? 它們是橢圓方程中的___?
長軸長2a
短半軸長b
焦距2c
長半軸長a
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
圖中紅線和藍線的交點是___?
焦點
頂點
中心
圓心
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
工人這種畫法是基於橢圓的什麼性質?
橢圓的對稱性和均勻性
橢圓上一點到兩焦點距離的和為定值.
橢圓的焦距為2c
同頂點的兩個橢圓相等
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