2.设limf(x)存在,且 (x)=(x)^2-xlim _(xarrow 2)f(x), 则 f(x)= __

5.(2020)已知limf(x)极限存在,且 (x)=(x)^3+3xlim _(xarrow 2)f(x), 则 (x)=

1.-|||-若limf(x)存在,且 (x)=(x)^3+dfrac (2{x)^2+1}(x+1)+2lim _(xarrow 1)f(x) ,则 lim

2.设 (x)=2, 且 f(0)=0 ,则 int f(x)dx= __-|||-

2.设函数 (x)=dfrac (1)(x) ,则 f[ f(x)] =

设函数f(x)在x=2处连续，且lim_(xto2)(f(x)-1)/(x-2)存在，则f(2)=____.18. (4.0分) 设函数f(x)在x=2处连续，

设y=f(x) 在x0处可导,且 ((x)_(0))=2, 则lim _(xarrow 0)dfrac (f({x)_(0)+2)x-f((x)_(0)-f(x

2.设函数f(x)在区间 (-1,1) 内有定义,且 lim _(xarrow 0)f(x)=0, 则 ()-|||-A.当 lim _(xarrow 0)df

[题目]设f(x)在 x=0 处连续,且 lim _(xarrow 0)dfrac ((f(x)+1){x)^2}(x-sin x)=2,-|||-则曲线 =f

2.设f(x)在 x=0 的邻域内有定义, (0)=1, 且 lim _(xarrow 0)dfrac (ln (1+2x)-2xf(x))({x)^2}=0-

设f(x)是连续函数,且 (x)=(x)^2+2(int )_(0)^2f(t)dt 则 f(x)=设f(x)是连续函数,且 (x)=(x)^2+2(int )