6.设mE<∞,f_{n)(x)}为a.e.有限可测函数列,证明:lim_(ntoinfty)int_(E)(|f_(n)(x)|)/(1+|f_(n)(x)|
5.设f_(n)(x)为E上非负可测函数列,若lim_(ntoinfty)intlimits_(E)f_(n)(x)dx=0,则f_(n)Rightarrow
11.设在可测集E上, _(n)(x)Longrightarrow f(x), 而对任意正整数n和a.e.的 in E, _(n)(x)=(f)_(n)(x),
判断题:设f_(n)(x)连续,若函数列f_{n)}在区间I上逐点收敛到函数f,那么f在I上必定是连续的。A. 对B. 错
4.判断题判断题:函数列f_(n)(x)=x^n在xin[0,1]上一致收敛。A. 对B. 错
以下哪些函数列在区间[0, 1]上一致收敛? A f_n(x)= x^n B f_n(x)= sin(nx) C 1/(1 + nx)
1.设f(x,y)=e^sqrt(x^(2)+y^{4)},求f_(x)(0,0),f_(y)(0,0).1.设$f(x,y)=e^{\sqrt{x^{2}+y
设f(x,y)=e^-xsin(x+2y),则f_(x)(0,(pi)/(4))=____7. (5.0分) 设$f(x,y)=e^{-x}\sin(x+2
[主观题]设函数f(x)=e5x,则f(x)的n阶导数f(n)(x)=____.
∫f(x^n)x^(n-1)dx=F(x^n)+C(C ∫f(lnax)1/xdx=F(lnax)+C.(a≠0)(D.) ∫f(e^(-x))e^(-x)dx