→ a88241050:我比較好奇張爸是啥= = 140.135.32.98 01/11 20:55
推 midarmyman:正負根號二 140.117.198.78 01/11 22:04
推 vladmir:& 0 203.73.35.219 01/20 18:38
The function
x^2/3+ l x^2-2 l
is differentiable for all real x except?
兩個l l是絕對值
好像有三個~
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