MQ38 --- Variation
2012-08-07 12:43 am
MQ38 ---VariationDifficulty: 35%Given x³-y⁻³∝x³+y⁻³, prove that x-y⁻¹∝x+y⁻¹.
回答 (1)
2012-08-07 1:06 am
✔ 最佳答案
圖片參考：http://i1191.photobucket.com/albums/z467/robert1973/Aug12/Crazyprop1.jpg
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