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Matrices and Determinants

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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)

Section: Mathematics

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Question : 45

Total: 56

Let b = 6, with a and c satisfying (E). If α and β are the roots ofthe quadratic equation ax2+bx+c = 0, then

[JEE Adv 2011 P1]

6
7
6
7
∞

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