设f(x)=lim(n→∞)(x^(2)e^(n(x-1))+ax+b)/(e^(n(x-1))+1)确定a b 使f(x)处处可导.求f`(x)
人气:275 ℃ 时间:2020-04-20 03:18:50
解答
f(x)为分段函数
x>1 f(x)=x^2
x=1 f(x)=(x^2+ax+b)/2
x
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