請問要如何解出根r ? - 考試
By Lucy
at 2013-02-23T10:08
at 2013-02-23T10:08
Table of Contents
請問這個式子要如何解出r ?請列出詳細的計算過程,謝謝
r^3-3r^2+3r+1=0
--
r^3-3r^2+3r+1=0
--
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