Let be defined by

MATHEMATICS · Numerical · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

Let f:D→Rf:D\to\mathbb{R} be defined by f(x)=x2+2x+ax2+4x+3af(x)=\frac{x^2+2x+a}{x^2+4x+3a}, where DD denotes the domain of ff. If ff is surjective, the complete range of aa is:

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