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Find the function satisfying the differential equation f′(t)−f(t)=3t f′(t)−f(t)=3t and the condition f(1)=−1f(1)=−1.

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Try this solution (see the attachment).
Find the function satisfying the differential equation f′(t)−f(t)=3t f′(t)−f(t)=3t-example-1
User Ben Fischer
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