Ответ:
Применяем правило: an · bn = (ab)n.
(0,25)⁷ · 4⁷ = (0,25 · 4)⁷ = 1⁷ = 1.
(4/5)¹⁷ · (5/4)¹⁷ = (4/5 · 5/4)¹⁷ = 1¹⁷ = 1.
(−0,125)¹¹ · 8¹¹ = (−0,125 · 8)¹¹ = (−1)¹¹ = −1.
(−0,2)⁵ · 5⁵ = (−0,2 · 5)⁵ = (−1)⁵ = −1.
Ответ: 1) 1; 2) 1; 3) −1; 4) −1.
Применяем правило: an · bn = (ab)n.
(0,25)⁷ · 4⁷ = (0,25 · 4)⁷ = 1⁷ = 1.
(4/5)¹⁷ · (5/4)¹⁷ = (4/5 · 5/4)¹⁷ = 1¹⁷ = 1.
(−0,125)¹¹ · 8¹¹ = (−0,125 · 8)¹¹ = (−1)¹¹ = −1.
(−0,2)⁵ · 5⁵ = (−0,2 · 5)⁵ = (−1)⁵ = −1.
Ответ: 1) 1; 2) 1; 3) −1; 4) −1.