Making use of the cube root table, find the cube root of the following (currect to three decimal places):
8.65
=
We know that value of
From cube root table we get,
=
So by unitary method,
∵ For difference (870 – 860 = 10 ) difference in cube root values = 9.546 – 9.510 = 0.036
∴ For difference (865 – 860 = 5) difference in cube root values =
=
We also have,
∴
Thus the required cube root is = 2.053.