This is part of double integral. I just can't seem to figure out what I'm doing wrong.(adsbygoogle = window.adsbygoogle || []).push({});

The inner integral comes out to be:

[tex]\int_0^\infty{e^{-xy}dy}[/tex]

I emailed my teacher to help me through it, and he says this should integrate down to 1/X but I can't seem to figure out how. I'm no good with exponentials and differentiation/integration.

The antiderivative of [itex]e^{-xy}[/itex] is [itex]-xe^{-xy}[/itex] correct?

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# Simple exponential integral

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