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Int X^N E^{Ax Dx Frac{( 1)^N}{A^{N+1}}\Gamma[1+N, Ax Text Gamma(a,X)=\Int X^{\Infty T^{A 1}E^{ T}\Hspace{2pt}\Text{D}T

Front \[\int x^n e^{ax}\ dx\]
Back \[ \frac{(-1)^n}{a^{n+1}}\Gamma[1+n,-ax], \\ \text{ where } \Gamma(a,x)=\int_x^{\infty} t^{a-1}e^{-t}\hspace{2pt}\text{d}t\]

Tags: exponentials

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