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[(2/7)^51 : (4/49)^25 + 5/7 ]^1001

Răspuns :

[(2/7)^51 : (4/49)^25 + 5/7 ]^1001 =
=[(2/7)^51 : (2/7)^50 + 5/7 ]^1001 =
=[(2/7)^1 + 5/7 ]^1001 =
=(2/7 + 5/7)^1001 =
=(7/7)^1001 =
=1^1001 =1