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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