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弈趣極光– 享受思維樂趣

ejsoon.win
6 hours ago · 衆所周知， 8 3 = 2 \sqrt[3]{8}=2 38 =2，然而很少有人知道它還有兩個共軛複根： − 1 ± 3 i -1\pm\sqrt{3}i −1±3 i。 如此一來，所有的實數的三次方根，都有兩個共軛複根， ...