4
All numbers have cube roots (not necessarily integral cube roots) so every prime has cube roots.
The real cube root of 1 is 1, since 13 = 1. There also a pair of complex cube roots.
Yes.
-21 + 1.7320508i1 - 1.7320508i
1
there is no cube roots in negative
4
All numbers have cube roots (not necessarily integral cube roots) so every prime has cube roots.
The real cube root of 1 is 1, since 13 = 1. There also a pair of complex cube roots.
Yes.
3√0.125 = 0.5 (there is only 1 real cube root of 0.125).
you are my friend
Any real number - positive or negative - has exactly one real cube root. Any real number (except zero) has three cubic roots in the complex numbers; but only one of them is real.
-21 + 1.7320508i1 - 1.7320508i
There are 3 cube roots of 27. There are 2 square roots of 27 ( or any real number ). There are 4 fourth roots of 27 and so on:)
The ancients - Egyptians or Greeks. They probably came across the square root of 2 when considering the diagonal of a square with sides of length 1. The cube root of 3 would have arisen, similarly, with the principal diagonal of a unit cube.