曲线=dfrac (4x-1)({(x-2))^2}( )

函数(x)=dfrac (1)(x-2)的间断点是(x)=dfrac (1)(x-2)(x)=dfrac (1)(x-2)、(x)=dfrac (1)(x-2)

函数(x)=dfrac (1)(4x-1)当（ ）时，为无穷大量。A (x)=dfrac (1)(4x-1) B (x)=dfrac (1)(4x-1)

求下列函数的反函数： (1) =dfrac (x+2)(x-2); (1) =dfrac (x+2)(x-2); (1) =dfrac (x+2)(x-2);求

lim _(xarrow 2)dfrac (sin (x-2))({x)^2-4}=lim _(xarrow 2)dfrac (sin (x-2))({x)^2

(x)=dfrac ({x)^2-1}((x+1)(x-2))

曲线=dfrac (x(x-1))(x(x-1)(x-2))的渐近线共有（ ）曲线的渐近线共有（ ）A.1条B.2条C.3条D.4条

求极限lim _(xarrow 2)(dfrac (1)({x)^2-3x+2})-(dfrac (1)(x-2))-|||-__求极限

lim _(xarrow 4)dfrac (sqrt {2x+1)-3}(sqrt {x-2)-sqrt (2)}=..

（21）lim _(xarrow 4)dfrac (sqrt {2x+1)-3}(sqrt {x-2)-sqrt (2)}（21）

函数(x)=dfrac (|x|sin (x-2))(x(x-1){(x-2))^2}在下列哪个区间内有界（　　）函数在下列哪个区间内有界（　　）A. （-1，