余弦公式
Authored by Abbe Leong
Mathematics
9th - 12th Grade
Used 3+ times
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9 questions
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1.
DROPDOWN QUESTION
1 min • 1 pt
2.
DROPDOWN QUESTION
1 min • 1 pt
3.
DROPDOWN QUESTION
1 min • 1 pt
4.
DROPDOWN QUESTION
1 min • 1 pt
5.
MATCH QUESTION
1 min • 1 pt
三角形ABC中，若∠A的對邊為a,∠B的對邊為b,∠C的對邊為c。配對以下公式︰
cosB
cosC
cosA
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
三角形ABC中，若∠A的對邊為a,∠B的對邊為b,∠C的對邊為c。以下余弦公式正確的是︰(多於一個正確答案)
7.
DRAW QUESTION
3 mins • 1 pt
三角形ABC中，若∠A的對邊為a,∠B的對邊為b,∠C的對邊為c。
默寫余弦定理︰a2=
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