Mathematics
Senior High
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這題的key如果不給,要怎麼求代入的值,x=2,3呢?怎麼來ㄉ🥴
9. 請問C8+2C°+2°C°+2°C°+2*C°+2°C %+2°C% +27C+2°C " 的值為何?
KEY (c+ y)*利用二項式定理展開後,x=1,y2代入即可。1101 Ep
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可以詳細解釋一下嗎🥹還有我打錯了是x=1,y=2