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Exponential Functional Equation

Algebra Level 2

If \(f(\ln x)=x^2+x+1\), where \(x>0\), find \(f(x)\).

\[\dfrac{1}{x}\] \[e^x+1\] \[e^x\] \[e^{2x}+e^x+1\]

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by Fahim Shahriar Shakkhor

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