Решебник по алгебре и начала математического анализа 11 класс Алимов Задание 1072

\[\boxed{\mathbf{1072}\mathbf{.}}\]

\[1)\ A_{4}^{1} = 4;\]

\[2)\ A_{5}^{1} = 5;\]

\[3)\ A_{5}^{2} = 5 \bullet 4 = 20;\]

\[4)\ A_{4}^{2} = 4 \bullet 3 = 12;\]

\[5)\ A_{7}^{7} = 7 \bullet 6 \bullet 5 \bullet 4 \bullet 3 \bullet 2 \bullet 1 =\]

\[= 5\ 040;\]

\[6)\ A_{6}^{6} = 6 \bullet 5 \bullet 4 \bullet 3 \bullet 2 \bullet 1 = 720;\]

\[7)\ A_{10}^{3} = 10 \bullet 9 \bullet 8 = 720;\]

\[8)\ A_{8}^{3} = 8 \bullet 7 \bullet 6 = 336.\]