Making use of the cube root table, find the cube root of the following (currect to three decimal places):
833
=
We know that value of
From cube root table we get,
=
So by unitary method,
∵ For difference (840 – 830 = 10 ) difference in cube root values = 9.435 – 9.398 = 0.037
∴ For difference (833 – 830 = 3) difference in cube root values =
= = 9.409
Thus the required cube root is = 9.409.