1 (a^-2)^3:a^-5=a^-6:a^-5 = a ^ -1 = 1/a
2) 125^-3=1/125^3=1/1953125
3) (0,6)^0-(0,1)^-1:(3:2^3)^-1*(1,5)^3-(-1/3)^-1
= 1 - 10 : (3/2)^-3 * 3/2^3 - (-3)^1 =
= 1-10 : 3/2^0 + 3 = 1-10 : 0 + 3 = -9 : 3 = -3
4) (1/5)^-2*(1dwa i trzy dziesiąte)^-1-(3^-1-2^-1)^-2:(2/21)^-1 =
= 5^2 * (23/10)^-1 -(1/3 - 1/2) ^-2 : 21/2 =
= 25 * 10/23 - (-1/6)^2 : 21/2=
= 250/23 - 36 * 2/21=
= 250/23 - 72/21 =
= 10,9 - 3,4 = 7,5
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1 (a^-2)^3:a^-5=a^-6:a^-5 = a ^ -1 = 1/a
2) 125^-3=1/125^3=1/1953125
3) (0,6)^0-(0,1)^-1:(3:2^3)^-1*(1,5)^3-(-1/3)^-1
= 1 - 10 : (3/2)^-3 * 3/2^3 - (-3)^1 =
= 1-10 : 3/2^0 + 3 = 1-10 : 0 + 3 = -9 : 3 = -3
4) (1/5)^-2*(1dwa i trzy dziesiąte)^-1-(3^-1-2^-1)^-2:(2/21)^-1 =
= 5^2 * (23/10)^-1 -(1/3 - 1/2) ^-2 : 21/2 =
= 25 * 10/23 - (-1/6)^2 : 21/2=
= 250/23 - 36 * 2/21=
= 250/23 - 72/21 =
= 10,9 - 3,4 = 7,5