[题目]下列各对函数中, () 中的两个函数相-|||-等-|||-A、 =dfrac (xln (1-x))({x)^2} 与 =dfrac (ln (1-x))(x)-|||-B、 =ln (x)^2 与 =2ln x-|||-C、 =sqrt (1-{sin )^2x} 与 =cos x-|||-D、 =sqrt (x(x-1)) 与 =sqrt (x)sqrt ((x-1))

设=ln sqrt (dfrac {1-x)(1-{x)^2}}则 dy|=ln sqrt (dfrac {1-x)(1-{x)^2}}设则dy|

[题目]函数 (x)=(dfrac (1)(1+{e)^x}-dfrac (1)(2))ln dfrac (1-x)(1+x) 是 ()-|||-A.奇函数-|

[题目]函数 (x)=dfrac ({e)^x-1}({e)^x+1}ln dfrac (1-x)(1+x) 是 ()-|||-A、奇函数-|||-B、偶函数-

求下列函数的导数:-|||-(1) =arcsin (sin x);-|||-(2) =arctan dfrac (1+x)(1-x);-|||-(3) =ln

求下列函数的导数:-|||-(1) =arcsin (sin x);-|||-(2) =arctan dfrac (1+x)(1-x);-|||-(3) =ln

求函数 (x)=dfrac (x)(|1-x|)ln |x| 的间断点,并判别其类型。

[题目]试证下列函数在指定区间内的单调性.-|||-(1) =dfrac (x)(1-x) (-infty ,1) ;-|||-(2) =x+ln x (0,+

函数 f(x)=ln (1-x)/(1+x) 是A. 奇函数B. 偶函数C. 非奇非偶函数D. 不能确定奇偶性

=(ln )^2(1-x),则=(ln )^2(1-x)________.,则________.

[题目]求下列函数的反函数-|||-(1) =sqrt [3](x+1);-|||-(2) =dfrac (1-x)(1+x).