If |\table x^2+x,x+1,x-2;2x^2+3x-1,3x,3x-3;x^2+2x+3,2x-1,2x-1|=ax-12, then 'a' is equal to: [Main 11 Apr 2015]

JEE Main 11 April 2015 Paper

Section: Mathematics

Question : 65 of 90

Marks: +1, -0

|=ax−12

, then 'a' is equal to:

[Main 11 Apr 2015]

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