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IIT JEE Advanced 2011 Paper 1

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Paragraph for Question Nos. 60 to 62:
Let a, b and c be three real numbers satisfying
[

a

b

c

][

1	9	7
8	2	7
7	3	7

] = [

0

0

0

] (E)

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Question : 61

Total: 69

Let ω be a solution of x3–1 = 0 with Im(ω) > 0. If a = 2 with b and c satisfying (E), then the value of

is equal to

−2
2
3
−3

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