\[\boxed{\text{19\ (19).\ }\text{Еуроки\ -ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\text{\ a}^{5}a^{3} = a^{(5 + 3)} = a^{8}\]
\[2)\ \left( a^{5} \right)^{3} = a^{(5 \cdot 3)} = a^{15}\]
\[3)\ a^{5}\ :a^{3} = a^{(5 - 3)} = a^{2}\]
\[4)\ \left( a^{8} \right)^{4}\ :\left( a^{2} \right)^{8} = a^{(8 \cdot 4)}\ :a^{(2 \cdot 8)} =\]
\[a^{32}\ :a^{16} = a^{(32 - 16)} = a^{16}\]
\[\boxed{\text{19.\ }\text{Еуроки\ -ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\text{\ a}^{5}a^{3} = a^{(5 + 3)} = a^{8}\]
\[2)\ \left( a^{5} \right)^{3} = a^{(5 \cdot 3)} = a^{15}\]
\[3)\ a^{5}\ :a^{3} = a^{(5 - 3)} = a^{2}\]
\[4)\ \left( a^{8} \right)^{4}\ :\left( a^{2} \right)^{8} = a^{(8 \cdot 4)}\ :a^{(2 \cdot 8)} =\]
\[a^{32}\ :a^{16} = a^{(32 - 16)} = a^{16}\]