Integração por Partes
Evaluate ∫xex dx\int x e^{x}\,dx∫xexdx.
Use integration by parts: ∫u dv=uv−∫v du\int u\,dv = uv - \int v\,du∫udv=uv−∫vdu. Let u=xu = xu=x, dv=ex dxdv = e^{x}\,dxdv=exdx.
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