Suppose f(x) is such a quadratic expression that it is positive for all real x.If g(x) = f(x) + f′(x) + f′′(x), then for any real - NDA Mathematics 2018 (II)

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Suppose f(x) is such a quadratic expression that it is positive for all real x.
If g(x) = f(x) + f′(x) + f′′(x), then for any real