[微分] 91政大企管
sinX-tan^-1X x^3/2
lim --------------- ~ lim--------
x→0 x^2*ln(1+x) ~ x→0 x^2*x
tan^-1X:tanx的反函數
x^2 :x的平方
x^3:x的3次方
我想知道分子的部份是怎麼變的
謝謝~
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