Making use of the cube root table, find the cube root of the following (currect to three decimal places):
34.2
= ![]()
We know that value of ![]()
From cube root table we get,
= ![]()
So by unitary method,
∵ For difference (350 – 340 = 10 ) difference in cube root values = 7.047 – 6.980 = 0.067
∴ For difference (342 – 340 = 2) difference in cube root values = ![]()
= ![]()
We also have, ![]()
∴ ![]()
Thus the required cube root is = 3.246.
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