[题目]设 (x)=lim _(narrow infty )dfrac ((n-1)x)(n{x)^2+1} 则f(x)的间断点为 x=-|||-__ ..

[题目]设 (x)=lim _(narrow infty )dfrac (1+x)(1+{x)^2n}, 求f(x)的间断点,并说-|||-明间断点所属类型.

(2)设 (x)=lim _(narrow infty )dfrac ({x)^2n-1+a(x)^2+bx}({x)^2n+1} 若 =1, x=-1 均为f

设 (x)=lim _(narrow infty )dfrac ({x)^n+2-(x)^-n}({x)^n+(x)^-n} 则函数(x)=lim _(narr

设(x)=lim _(narrow infty )dfrac ({x)^n+2}(sqrt {{2)^2n+(x)^2n}}，则(x)=lim _(narrow

设(x)=lim _(narrow infty )dfrac ({x)^2n-1+a(x)^2+bx}({x)^2n+1}-|||-+bx/，若(x)=lim

16、单选-|||-设函数 (x)=lim _(narrow infty )dfrac (1+x)(1+{x)^2n}, 则下列结论成立的是 ()-|||-A

例4:讨论函数 (x)=lim _(narrow infty )dfrac ({x)^n+2-(x)^-n}({x)^n+(x)^-n} 的间断点及其类型.

设函数 (x)=lim _(narrow infty )dfrac (1+x)(1+{x)^2n}, 则f(x)的间断点个数为-|||-A.0 B.1 C.2

设函数(x)=lim _(narrow infty )dfrac ({x)^n+3}(sqrt {{3)^2n+(x)^2n}}(-infty lt xlt +

[题目]设 (dfrac (1)(x))=dfrac (x)({x)^2+1} 则 f(x)=