\[\boxed{\text{533.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
Пояснение.
Решение.
\[\textbf{а)}\ если\ n = 6:\]
\[( - 1)^{n} = ( - 1)^{6} = 1.\]
\[\textbf{б)}\ \ если\ n = 11:\ \]
\[( - 1)^{n} = ( - 1)^{11} = - 1.\]
\[\textbf{в)}\ \ если\ n = 23:\]
\[\ ( - 1)^{n} = ( - 1)^{23} = - 1.\]
\[\textbf{г)}\ \ \ если\ n = 70:\ \ \ \]
\[( - 1)^{n} = ( - 1)^{70} = 1.\]
\[\boxed{\text{533\ (533).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ c^{2} \cdot c^{3} = c^{5}\]
\[\textbf{б)}\ c^{4} \cdot c^{5} = c^{9}\]
\[\textbf{в)}\ c^{6} \cdot c^{5} = c^{11}\]
\[\textbf{г)}\ c^{4} \cdot c^{11} = c^{15}\text{\ \ }\]