If I have this equation:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]

\int_0^{+\infty}{\frac{e^{-x}}{\int_{\Delta T}f(x,t)}f(x,t)xdx}=Ag(t)

[/tex]

I am interested to show that f(x,t) must be g(t). This condition must be necessary and sufficient. Is this possible to prove?

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# Homework Help: Prove that a function must have only x dependency

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