11. Calculaţi, folosind regulile de calcul cu puteri:
b) (343-3): (35)5;
e) (27)³: (2-2¹0);
a) (5-5¹2): (5²)³;
d) (7-7¹⁹): (73)4;
c) (27¹-2): (27);
f) (6³): (6-6¹).
