0917_高二預習_等比前n項和(錯位相減法)
Interactive Video
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Mathematics
•
11th Grade
•
Hard
Chi weng Chao
FREE Resource
2 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
影片中推導等比數列前n項和公式所使用的方法是什麼？
錯位相減法
裂項相消法
倒序相加法
數學歸納法
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
當等比數列的公比q等於1時，其前n項和Sn的公式是什麼？
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