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Advanced Engineering Mathematics (8th Edition) Chapter 17.3, Problem 9P At the problem ( ∂u/∂t = ∂2u/∂x2...

Advanced Engineering Mathematics (8th Edition)

Chapter 17.3, Problem 9P

At the problem ( ∂u/∂t = ∂2u/∂x2 − tu ) from where do I get an e−t2/2 at the final step in u(x,t)?

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