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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 = −0.13y, y(0) = 70y(6) ≈
2.dydt = −0.02y, y(0) = 210y(6) ≈
3.dydt = −0.15y, y(0) = 370y(6) ≈
4.dydt = −0.02y, y(0) = 140y(6) ≈
5.dydt = −0.06y, y(0) = 110y(4) ≈
6.dydt = −0.08y, y(0) = 320y(4) ≈
7.dydt = −0.06y, y(0) = 410y(2) ≈
8.dydt = −0.05y, y(0) = 200y(4) ≈
9.dydt = −0.08y, y(0) = 130y(6) ≈
10.dydt = −0.05y, y(0) = 100y(7) ≈
11.dydt = −0.05y, y(0) = 150y(6) ≈
12.dydt = −0.1y, y(0) = 360y(4) ≈
答案 — 指数增长与衰减模型（dy/dt = ky）练习
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