ЗПЗ §§ 9–12 Алгебра = ЗПЗ §§ 19–22 Математика
Подайте у вигляді степеня з основою a:
1. a2 · a–3;
2. a–5 · a–4;
3. a5 : a7;
4. (a–2)3.
Розв'язок:
1. a2 · a–3 = a–3+2 = a–1;
2. a–5 · a–4 = a–5+(–4) = a–9;
3. a5 : a7 = a5–(–7) = a12;
4. (a–2)3 = a–6.
ЗПЗ §§ 9–12 Алгебра = ЗПЗ §§ 19–22 Математика
1. a2 · a–3;
2. a–5 · a–4;
3. a5 : a7;
4. (a–2)3.
1. a2 · a–3 = a–3+2 = a–1;
2. a–5 · a–4 = a–5+(–4) = a–9;
3. a5 : a7 = a5–(–7) = a12;
4. (a–2)3 = a–6.
