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Mathematics 21 Online
OpenStudy (anonymous):

(Differential Equations) I was just seeing if I remembered how to solve the heat equation with semi-infinite bounds, but I forgot why one part of the process works. My work is attached in a pdf in the following comment. In the last line of part five: Why can I choose those boundaries of integration?

OpenStudy (anonymous):

OpenStudy (anonymous):

because e^(-x) is integrable from 0 to n?

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