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IIT JEE Advanced 2011 Paper 2

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Question : 47

Total: 60

Let ω ≠ 1 be a cube root of unity and S be the set of all non- singular matrices of the form [

1	a	b
ω	1	c
ω2	ω	1

], where each of a, b, and c is either ω or ω2. Then the number of distinct matrices in the set S is

2
6
4
8

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