求下列函数的导数:-|||-(1) =arcsin (sin x);-|||-(2) =arctan dfrac (1+x)(1-x);-|||-(3) =ln tan dfrac (x)(2)-cos xcdot ln tan x;-|||-(4) =ln ((e)^x+sqrt (1+{e)^2x});-|||-(5) =(x)^dfrac (1{x)}(xgt 0).