If be the roots of then the number of equation(s) whose roots are and is |
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a) |
1 |
b) |
2 |
c) |
3 |
d) |
6 |

If be the roots of then the number of equation(s) whose roots are and is |
|||||||

a) |
1 |
b) |
2 |
c) |
3 |
d) |
6 |

1 Answer

127 votes

**(a)**

We have,

, where is a complex cube root of unity

Let and Then,

The equation whose roots are and is

For other combinations of and we obtain the same equation. Hence, there is only one equation

127 votes

127