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comparati a si b : a=5 la puterea 30 b=7 la puterea 20

Răspuns :

a=(5^3)^10=125^10
b=(7^2)^10=49^10
125^10>49^10=>a>b
deci:
a=(5^3)^10=125^10
b=(7^2)^10=49^10
125^10>49^10=>a>b