求y=arcsinx/(1-x^2)的定义域,值域

Question

求y=arcsinx/(1-x^2)的定义域,值域

Answer 1

由-1≤u=x/(1-x^2)≤1,得不等式组:① x^2-x-1≥0且x^2+x-1≥0且x2-1>0或不等式组② x^2-x-1≤0且x^2+x-1≤0且x2-1