Let f(x)=x^2+a x+b, where a, b \in R. If f(x)=0 has all its roots imaginary, then the roots of f(x)+f^{'}(x)+f^{' '}(x)=0 are

EAMCET Engineering 2009 Solved Paper

Section: Mathematics

Question : 92 of 160

Marks: +1, -0

Let f(x)=x2+ax+b, where a,b∈R. If f(x)=0 has all its roots imaginary, then the roots of f(x)+f′(x)+f′′(x)=0 are

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