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aratati ca : a=|5-/5|+|2-/5|-2 - e nr natural ( / - inseamna radical)

Răspuns :

a = |5 - /5| + |2 - /5| - 2 = |/25 - /5| + |/4 - /5| - 2 => a = 5 - /5 + /5 - 2 - 2 = 5 - 2 - 2 = 1