Question

me ajudem pfv nessa questão

Answer 1

a)  4+[1/2+1/2]^(-1)= 4+1=5
b) (-1/9)+[1/3+1/3]^(-2) = (-1/9) + [2/3]^(-2) = (-1/9)+9/4 = -4/36+ 81/36 = 77/36
c) 27^(1/3)+64^(1/2)-8^(2/3)+4^(1/2) = 3+8-4 + 2 = 9