2.下列函数何处可导?何处解析?-|||-(1) (z)=(x)^2-iy;-|||-(2) (z)=2(x)^3+3(y)^3i;-|||-(3) (z)=x(y)^2+i(x)^2y-|||-(4) (x)=sin xcos h+icos xsin h.