這是二項式定理..
find the constant term in the expansion of (1-2x)^9(1+1/x)^3
ans係-293..
我唔知點解次次都係計到-5..
求數學高手將個步驟打出黎..
thx~~~
收錄日期: 2021-04-23 15:25:06
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081102000051KK00192