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b) 0,5^3 • 0,5^7 = 05^3*7 = 0,5^10 = 0,0009765625
c) (2^5)^-2 = (mnożymy potęgi) 2^-10 = (1/2)^10 = 1/1024
d) (0,25^-1)^-4 = 0,25^4 = 0,00390625
e) 5^-9 : 5^-11 = 5^(-9 -(-11)) = 5^2 = 25
f) 4 : 4^-4 = 4^(1 -(-4)) = 4^5 = 1024
g) 6^5 : 3^5 = (2 • 3)^5 : 3^5 = (32 • 243) : 243 = 32
h) 10^10 : 5^10 = (5 • 2)^10 : 5^10 = (9 765 625 • 1024) : 9 765 625 = 1024
i) 6^3 • 2^-5 = 216 • (1/2)^5 = 216 • 1/64 = 27 • 1/8 = 27/8 = 3całe i 3/8
j) 10^4 • 5^-2 = 10 000 • (1/5)^2 = 10 000 • 1/25 = 400
mam nadzieje ze pomogłam ;*