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13 Nov 2019
1. Find the general solution of the differential equation, or the particular solution if an initial condition is given.
xy' + 7y = x^2; y(2) = 12 a) y = x^2/9 + 13,312/9x^7 b) y = x^2/9 + 10,113/9x^7 c) y = x/9 + 13,312/9x^7 d) y = x^2/9 + 10,113/9x^9
2. Solve the differential equation model of radioactive decay: dQ/dt = -0.2Q.
a) Q(t) = -1/0.2t +Q b) Q(t) = Q e^-t c) Q(t) = -Q ln 0.2t + c d) Q(t) = Q e^-0.2t1.
1. Find the general solution of the differential equation, or the particular solution if an initial condition is given.
xy' + 7y = x^2; y(2) = 12 a) y = x^2/9 + 13,312/9x^7 b) y = x^2/9 + 10,113/9x^7 c) y = x/9 + 13,312/9x^7 d) y = x^2/9 + 10,113/9x^9
2. Solve the differential equation model of radioactive decay: dQ/dt = -0.2Q.
a) Q(t) = -1/0.2t +Q b) Q(t) = Q e^-t c) Q(t) = -Q ln 0.2t + c d) Q(t) = Q e^-0.2t1.
Deanna HettingerLv2
6 Feb 2019
