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Let omega be a complex cube root of uni...

Let `omega` be a complex cube root of unity with `omega ne 0` and `P=[p_(ij)]` be an n x n matrix with `p_(ij)=omega^(i+j)`. Then `p^2ne0` when n is equal to :

A

57

B

55

C

58

D

56

Text Solution

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The correct Answer is:
B, C
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