Question: 1. Use Maple to find the general solution to r +3(y + 2) = dr sin(x) F Careful with parentheses here! [2 points] 2.


1. Use Maple to find the general solution to ( x frac{d y}{d x}+3left(y+x^{2}ight)=frac{sin (x)}{x} ). Careful with p

1. Use Maple to find the general solution to r +3(y + 2) = dr sin(x) F Careful with parentheses here! [2 points] 2. Radioactive Decay: A rock contains two radioactive isotopes, RA, and RA, that belong to the same radioactive series; that is, RA, decays into RA2, which then decays into stable atoms. Assume that the rate at which RA decays into RA is 50e-10 kg/sec. Because the rate of decay of RA is proportional to the mass y(t) of RA present, dy the rate of change in RA is =rate of creation rate of decay. (a) Set up a differential equation for this scenario. [2 points] (b) If the constant of proportionality is k = 2/sec and initially y(0) = 40 kg, Use Maple to find the mass y(t) of RA for t0. [2 points]

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Answer a dy 20y 5010 Pt20 SPf dt 120dt 20t Therefore the integration facton felt Now epot b ... View full answer

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