Hi

Could someone check to c if these are the right answers:

= $\displaystyle \sqrt{1-x^2}$

$\displaystyle \frac{d}{dx}*\frac{1}{arcsinx} = \frac{-1}{(arcsin)^2*\sqrt{1-x^2}}$

If they're wrong, could someone please show me the right way to do them??