Q134.Direction of the question: Solve the following question and mark the best possible option.
Let f (x) = x² + ax + b and g(x) = f(x + 1) - f(x-1). If f (x) ≥ 0 for all real x, and g(20) = 72, then the smallest possible value of b is
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Q134
29 Nov 2020
Q134.Direction of the question: Solve the following question and mark the best possible option.
Let f (x) = x² + ax + b and g(x) = f(x + 1) - f(x-1). If f (x) ≥ 0 for all real x, and g(20) = 72, then the smallest possible value of b is
