\[\boxed{\mathbf{636}.}\]
\[1)\ y = x^{2};\]
\[2)\ y = \sqrt{x};\]
\[Графики\ функций:\]
\[4)\ Сравним:\]
\[При\ x = 0:\ \ \ \]
\[\sqrt{x} = x^{2}.\]
\[При\ x = 0,5:\ \ \ \ \]
\[\sqrt{x} > x^{2}.\]
\[При\ x = 1:\ \]
\[\sqrt{x} = x^{2}.\]
\[При\ x = \frac{3}{2}:\ \ \ \ \]
\[\sqrt{x} < x^{2}\text{.\ \ \ }\]
\[При\ x = 2:\ \ \ \ \]
\[\sqrt{x} < x^{2}.\]
\[При\ x = 3:\ \ \ \]
\[\sqrt{x} < x^{2}.\]
\[При\ x = 4:\ \ \ \ \]
\[\sqrt{x} < x^{2}.\]
\[При\ x = 5:\ \ \ \ \]
\[\sqrt{x} < x^{2}.\]