!Repede! Efectuati:

a) (3/4 + 5/6):2 1/9 - (1/2)² =

b) [(1/2)⁰+1/2+(1/2)²(1/2)³] =

c) (6/4)¹³X(3/2)⁸:(1 1/2)¹⁹ -2 =