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1990

JEE Main 1990 Mathematics question on Complex Numbers and Quadratic Equations

Let f(x)f(x) be a quadratic expression which is positive for all real values of xx. If g(x)=f(x)+f′(x)+f′′(x)g(x) = f(x) + f'(x) + f''(x), then for any real xx
  1. A.
    g(x)<0g(x) < 0
  2. B.
    g(x)>0g(x) > 0
  3. C.
    g(x)=0g(x) = 0
  4. D.
    g(x)≥0g(x) \geq 0
Show answer

Correct option: B

[1990]

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