Find the derivative of f(x)=arcsin(x)+arccos(x)f(x) = \arcsin(x) + \arccos(x)f(x)=arcsin(x)+arccos(x).
000
21−x2\frac{2}{\sqrt{1-x^2}}1−x22
11−x2\frac{1}{\sqrt{1-x^2}}1−x21
111