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A calculus problem by Nahom Assefa

Calculus Level 2

$\large \int e^{-x^2} dx = \ ?$

Notation: $C$ denotes the arbitrary constant of integration.

2xe^{x^2}+C

e^{x^2}+C

\frac {\sqrt \pi}2 \text{erfi }(x)+C

2e^{x^2}+C

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by Nahom Assefa

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