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Web skærmformat. - Aarhus Universitet

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III. Potensrækker – 1. l’Hospitals regel og uegentlige integraler 256<br />

1.14. Uendelige intervaller ☞ [S] 5.10 Improper integrals<br />

Eksempel<br />

Integralet<br />

har grænseværdi<br />

t <br />

1<br />

A(t) = dx = −<br />

1 x2 1<br />

t = 1 −<br />

x 1<br />

1<br />

t<br />

<br />

lim A(t) = lim 1 −<br />

t→∞ t→∞<br />

1<br />

<br />

= 1<br />

t<br />

1.15. Uendelige intervaller ☞ [S] 5.10 Improper integrals<br />

y<br />

1 t<br />

y = 1<br />

x 2<br />

x

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