1) a² ⋅ a³ = a^(2+3) = a⁵
2) a¹⁰ ⋅ a¹⁵ = a^(10+15) = a²⁵
3) a⁶ ⋅ a⁴ = a^(6+4) = a¹⁰
4) a¹² ⋅ a⁵ = a^(12+5) = a¹⁷
5) a⁶ : a² = a^(6-2) = a⁴
6) a¹⁰ : a³ = a^(10-3) = a⁷
7) a⁶ : a⁰ = a^(6-0) = a⁶
8) a¹¹ : a = a^(11-1) = a¹⁰
9) (a²)² = a^(2*2) = a⁴
10) (a³)² = a^(3*2) = a⁶
11) (a⁴)⁵ = a^(4*5) = a²⁰
12) (a⁰)² = a^(0*2) = a⁰ = 1
Ответ: 1) a⁵; 2) a²⁵; 3) a¹⁰; 4) a¹⁷; 5) a⁴; 6) a⁷; 7) a⁶; 8) a¹⁰; 9) a⁴; 10) a⁶; 11) a²⁰; 12) 1