Test Academy | If f(x) + 2f (1 – x) = x² + 2 ∀ x ∈ R, then f(x) = x² – 2, 1, 1/3 (x

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If f(x) + 2f (1 – x) = x² + 2 ∀ x ∈ R, then f(x) =

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