Find the cube root of each of the following rational numbers:

(i) 0.001728

(ii) 0.003375

(iii) 0.001

(iv) 1.331

(i) 0.001728

Given,

0.001728 =

Getting prime factors of 1728,

1728 = 2×2×2×2×2×2×3×3×3 =

,

(ii) 0.003375

Given,

0.003375 =

Getting prime factors of 3375 ,

3375 = 3×3×3×5×5×5,

Also,

(iii) 0.001

Given,

∵

(iv) 1.331

Given

∵ 1.331 =