If is an imaginary cube root of unity, is a positive integer but not a multiple of 3, then the value of is |
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a) |
3 |
b) |
c) |
0 |
d) |

If is an imaginary cube root of unity, is a positive integer but not a multiple of 3, then the value of is |
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a) |
3 |
b) |
c) |
0 |
d) |

1 Answer - 5876 Votes

3537

**(c)**

Since, is not a multiple of 3, therefore , where is a positive integer.

For ,

Similarly, for