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Efectuați:
a) (3/4) la puterea 2
b) (5(3) la puterea 2



Răspuns :

(3/4)²=3/4•3/4=9/16

5,(3)²=[(53-5)/9]²=48/9² = 16/3²=256/9
sau daca
(5/3)²=25/9