Question

caulule: (1 - 2sobre5)

Answer 1

a) (1 - 2/5)² = [(5 - 2)/5]² = (3/5)² = 9/25

b) (-1/5)⁴ = 1/625

c) (0,3 - 1/2)³ = (3/10 - 1/2)³, mmc (2,10) = 10 => (3/10 - 1/2)³ = [(3 - 5)/10]³ = (-2/10)³ = (-1/5)³ = -1/125

d) (0,01)³ = (1/100)³ = 1/1000000