4.求下列函数所表示曲线的渐近线:-|||-(1) =dfrac (1)(x) ;-|||-(2) =arctan x;-|||-(3) =dfrac (3{x)^3+4}({x)^2-2x}

4.曲线 =dfrac ({(1+x))^dfrac (3{2)}}(sqrt {x)} 的斜渐近线方程为 __

求函数(x)=dfrac (1)({(x-3))^2}图像的水平渐近线和铅直渐近线。求函数图像的水平渐近线和铅直渐近线。

曲线=dfrac (2{x)^2-x-1}({x)^2-1}(e)^dfrac (1{x)}的渐近线的条数有( )A) 1 B) 2C) 3D) 4曲线的渐近

16.曲线 =(e)^dfrac (1{{x)^2}}arctan dfrac ({x)^2+x+1}((x-1)(x+2)) 的渐近线条数为 ()-|||-A

4.曲线 =xln (2+dfrac (1)(x)) 的渐近线为_

[题目]设 =dfrac ({x)^3+4}({x)^2}.-|||-(1)求函数的增减区间及极值;-|||-(2)求函数图象的凹凸区间及拐点;-|||-(3)

8.曲线 =dfrac ({x)^3+x-2}({x)^2-1}(e)^dfrac (1{x)} 的渐近线条数为 ()-|||-(A)1 (B)2 (C)3

曲线=dfrac (x)(1-{x)^2}的渐近线是（ ）.=dfrac (x)(1-{x)^2}和=dfrac (x)(1-{x)^2}=dfr

求曲线 =dfrac (1)({x)^2-1} 的渐近线.

2.求下列函数的导数:-|||-(1) =(x)^3+dfrac (7)({x)^4}-dfrac (2)(x)+12 ;-|||-(2) =5(x)^3-(2