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soopo
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Homework Statement
What is the domain of the following function?
[tex] f(x,y) = (\sqrt(x) + x\sqrt(y)) \sum_{k=1}^{\infinity} (k^3 + k) x^k y^k [/tex]
when [itex] D_f \subset \Re^2 [/itex].
The Attempt at a Solution
The domain is [itex]x>0 \in \Re[/itex] and [itex]y>0 \in \Re[/itex] in my opinion.
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