Answer :
= 
We know that value of 
From cube root table we get,
= 
So by unitary method,
∵ For difference (740 – 730 = 10 ) difference in cube root values = 9.045 – 9.004 = 0.041
∴ For difference (732 – 730 = 2) difference in cube root values = 
= 
Thus, the required cube root is = = 9.012.
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