$\displaystyle y = sin^-1(x)+\sqrt{1-x^2}$ starting at point (0,1)

I have worked this down and obtained the integral

$\displaystyle \int \frac{2}{(x+1)}dx$

but I do not know how to set up my limits on the integral. I know the arcsin function is bound between -1 and 1 on the x axis and -pi/2 and pi/2 on the y axis