Q6 of 76 Page 4

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 =



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