Question: Prove that the functionf : R - R defined by f(x, y) = a2 + 4y2 - 1 is neither injective nor surjective. COMPLETE SOLUTIONS

Prove that the functionf : R - R defined by f(x, y) = a2 + 4y2 - 1 is neither injective nor surjective. COMPLETE SOLUTIONS TYPEWRITTEN OR WRITE LEGIBLY UNCLEAR SOLUTIONS WILL GET A LOW RATING

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