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  1. Find the derivative of \(\arcsin(x)\).
    \(\frac{d}{dx}(\arcsin(x))=\)
  2. Hence, find the indefinite integral \(\displaystyle\int \frac{1}{\sqrt{1-x^2}} \,dx\).
    \(\displaystyle\int \frac{1}{\sqrt{1-x^2}} \,dx =\)