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I'm wondering if you could find a solution to the following differential equation

ψ'(t)=β((l(t))/(w[L(t)]))ψ(t)-β((l(t))/(w[L(t)]))

where L(t)=∫l(t)dt

β=((∂w)/(∂L(t)))

β is a constant

I've been tryint to find a solution for ages. Please help!

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# Differential Equation

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