Re: [中學] 因式分解一題
※ 引述《terry617 (魔數師)》之銘言:
: x^11 除以 (x^2-x+1) 的餘式為何?
: 答案是-x-1
: 請問做法?
現在沒有教綜合除法了嗎?
1 0 0 0 0 0 0 0 0 0 0 0 |
1 1 0 -1 -1 0 1 1 0 -1 | 1
-1 -1 0 1 1 0 -1 -1 0 1 | -1
-----------------------------+-------+---
1 1 0 -1 -1 0 1 1 0 -1|-1 1
商式 = x^9 + x^8 - x^6 - x^5 + x^3 + x^2 -1
餘式 = -x + 1
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