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指数增长与衰减模型（dy/dt = ky）练习
指数增长与衰减模型（dy/dt = ky） · 1–12
用 y = y₀e^(kt)，结果精确到百分位。
1.dydt = 0.08y, y(0) = 480y(2) ≈
2.dydt = 0.14y, y(0) = 390y(3) ≈
3.dydt = 0.07y, y(0) = 70y(6) ≈
4.dydt = 0.07y, y(0) = 450y(2) ≈
5.dydt = 0.06y, y(0) = 500y(2) ≈
6.dydt = 0.03y, y(0) = 290y(9) ≈
7.dydt = 0.15y, y(0) = 410y(4) ≈
8.dydt = 0.04y, y(0) = 350y(7) ≈
9.dydt = 0.03y, y(0) = 190y(6) ≈
10.dydt = 0.05y, y(0) = 140y(7) ≈
11.dydt = 0.02y, y(0) = 350y(3) ≈
12.dydt = 0.04y, y(0) = 450y(5) ≈
答案 — 指数增长与衰减模型（dy/dt = ky）练习
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