1а) 3^-2 = 1/3^2 = 1/б) (-5)^-2 = 1/(-5)^2 = 1/2в) (-6)^-1 = 1/(-6) = -1/г) -4*(-2)^-3 = -4/(-2)^3 = -4/(-8) = 1/2
2а) (1/3)^-1 = 3^1 = (2/5)^-2 = (5/2)^2 = 25/(0,1)^-4 = 10^-4 = 1/1000г) (2 целых 1 треть) ^-3 = (7/3)^-3 = (3/7)^3 = 27/343
3а) 8^-1 + 6^-2 = 1/8 + 1/36 = 9/72 + 2/72 = 11/7б) 2,4^-1 + 5^0 = 1/2,4 + 1 = 5/12 + 12/12 = 17/1в) 1453 - 0,1^-3 = 1453 - 10^3 = 1453 - 1000 = 45г) 18-(1/5)^-2 = 18-25 = -7
1
а) 3^-2 = 1/3^2 = 1/
б) (-5)^-2 = 1/(-5)^2 = 1/2
в) (-6)^-1 = 1/(-6) = -1/
г) -4*(-2)^-3 = -4/(-2)^3 = -4/(-8) = 1/2
2
а) (1/3)^-1 = 3^1 =
(2/5)^-2 = (5/2)^2 = 25/
(0,1)^-4 = 10^-4 = 1/1000
г) (2 целых 1 треть) ^-3 = (7/3)^-3 = (3/7)^3 = 27/343
3
а) 8^-1 + 6^-2 = 1/8 + 1/36 = 9/72 + 2/72 = 11/7
б) 2,4^-1 + 5^0 = 1/2,4 + 1 = 5/12 + 12/12 = 17/1
в) 1453 - 0,1^-3 = 1453 - 10^3 = 1453 - 1000 = 45
г) 18-(1/5)^-2 = 18-25 = -7