5.5 The Substitution Rule/41

Failed to parse (Conversion error. Server ("https://en.wikipedia.org/api/rest_") reported: "Cannot get mml. TeX parse error: Double exponent: use braces to clarify"): {\displaystyle \int {\frac {1}{\sqrt {1-x^{2}}}}=\int {\frac {1}{u}}du=\ln u+c=\sin ^{-}^{1}{x}}