\[\boxed{\mathbf{63}.}\]
\[Основные\ свойства\ \]
\[определенных\ интегралов:\]
\[1)\ \int_{a}^{b}{f(x)\text{dx}} =\]
\[= \int_{a}^{c}{f(x)\text{dx}} + \int_{c}^{b}{f(x)\text{dx}};\]
\[2)\ \int_{a}^{b}{\text{Af}(x)\text{dx}} = A\int_{a}^{b}{f(x)\text{dx}};\]
\[A - постоянная;\]
\[3)\ \int_{a}^{b}{\left( f(x) + \varphi(x) \right)\text{dx}} =\]
\[= \int_{a}^{b}{f(x)\text{dx}} + \int_{a}^{b}{\varphi(x)\text{dx}}.\]