2.5
2.5. THE SECOND DERIVATIVE. Solution: (a) f”(x) ≥ 0. (b) f”(x) ≤ 0. (c) f”(x) ≤ 0 for x < 0 f”(x) ≥ 0 for x > 0. Solution:. Solution: For t < t 0 , the rate of growth, dP / dt , is increasing and d 2 P/dt 2 ≥ 0. The rate at t 0 , dP / dt is a maximum.
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