Вправи: 22.26-22.27

22.26 Спростіть вираз:

1) (23^a–1b)^–2 • (910a^–3b^–2)^–1 = 94a²b^–2 • 109a³b² = 2,5a⁵;

2) (4mn-25a)^–1 • 8m^–3n^–2a⁵ = 5a • 8m-3n-2a54mn-2 = 10a⁶m^–2 = 10a2m2.

22.27 Обчисліть

((1 – (1 + 2^–1)^–1)^–1)^–4 = ((1 – (1 + 12)^–1)^–1)^–4 = ((1 –(32)^–1)^–1)^–4 = (1 – 23)⁴ = (13)⁴ = 181.