Q.15 If the equations x2 + 2x+3=0 a...
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Q.15 If the equations x2 + 2x+3=0 and ax2+bx+c=0, a, b, c ER, have a common root, then a:b:cis [JEE Main - 2013] (A) 1:3:2 (B) 3:1:2 (C) 1:2:3 (D) 3:2:1

JEE/Engineering Exams
Maths
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( x=frac{-2 pm sqrt{4-12}}{2} ) ( x<0 text { [imeginury }] ) They axe conjugate ( x^{2}+2 x+3 quad ) & ( a n^{2}+b x+c ) are similal ( therefore frac{1}{a}=frac{2}{b}=frac{3}{c} ) ( a: b: 3=1: 2 ! 3 )
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