Mathematics
SMA
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想請教這題的做法哪裡出錯?
(答案是200/101)

No. Date 2.1+1+2+1+2+3 + + nch+1) 2 共100項 2 n=1 π Ma 2 2 1004101×201 + 171700 1 1+2+3+…+100 100x107 2 =

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