Identify the sign of that guarantees the accumulation function is concave up on an…

MATHEMATICS · Subjective · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation

Problem

Identify the sign of f′(x)f'(x) that guarantees the accumulation function F(x)=∫axf(t) dtF(x)=\int_{a}^{x} f(t)\,dt is concave up on an interval.

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