\[\boxed{\mathbf{37}\mathbf{.}}\]
\[\textbf{а)}\ y = x^{n};\ \ n \in N\]
\[y^{'}(x) = nx^{n - 1};\ \]
\[справедлива\ при\ x \in R.\]
\[\textbf{б)}\ y = x^{- n};\ \ n \in N\]
\[y^{'}(x) = nx^{- n - 1};\]