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1.默寫二項式定理 (x +y)n
2.展開 (1 +x)8
3.
4.
5.
依規則加到第11項(最後一項)=
6.
求
展式中,(1)x4的係數 (2)x的係數
7.求 0.9976 (小數第5位四捨五入)
8.求