Решебник по алгебре и начала математического анализа 11 класс Колягин Задание 518

\[1)\ n = 6 \bullet 6 = 36;\]

\[m = 3 \bullet 3 + 3 \bullet 3 = 6 \bullet 3 = 18;\]

\[P(A) = \frac{m}{n} = \frac{18}{36} = \frac{1}{2}.\]

\[2)\ n = 6 \bullet 6 = 36;\]

\[m = n - 3 \bullet 3 = 36 - 9 = 27;\]

\[P(A) = \frac{m}{n} = \frac{27}{36} = \frac{3}{4}.\]

\[3)\ n = 6 \bullet 6 = 36;\]

\[m = 6 + 5 + 4 + 3 + 2 + 1 = 21;\]

\[P(A) = \frac{m}{n} = \frac{21}{36} = \frac{7}{12}.\]