Решебник по алгебре и начала математического анализа 11 класс Колягин Задание 517

\[1)\ n = 6 \bullet 6 \bullet 6 = 216;\]

\[m =\]

\[= \left\{ 111;\ 222;\ 333;\ 444;\ 555;\ 666 \right\} = 6;\]

\[P(A) = \frac{m}{n} = \frac{6}{216} = \frac{1}{36}.\]

\[2)\ n = 6 \bullet 6 \bullet 6 = 216;\]

\[m = \left\{ 112;\ 121;\ 211 \right\} = 3;\]

\[P(A) = \frac{m}{n} = \frac{3}{216} = \frac{1}{72}.\]

\[3)\ n = 6 \bullet 6 \bullet 6 = 216;\]

\[m =\]

\[= \left\{ 221;\ 212;\ 122;\ 113;\ 131;\ 311 \right\} =\]

\[= 6;\]

\[P(A) = \frac{m}{n} = \frac{6}{216} = \frac{1}{36}.\]