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Sección 5: Regla <strong>de</strong> L’Höpital 38<br />

1<br />

Ejemplo 5.7. Hallar lim<br />

x→0<br />

Solución: Como<br />

Ejercicio 18.<br />

a) lim<br />

x→1<br />

x 2 − 1<br />

x − 1<br />

1<br />

lim<br />

x→0 x −<br />

x −<br />

1<br />

ln(1 + x)<br />

1<br />

= ∞ − ∞<br />

ln(1 + x)<br />

ln(1 + x) − x 0<br />

=<br />

x · ln(1 + x) 0<br />

= lim<br />

x→0<br />

(L ′ 1<br />

H)<br />

1+x − 1<br />

= lim<br />

x→0 ln(1 + x) + x<br />

1+x<br />

con la regla <strong>de</strong> L’Höpital<br />

−x<br />

= lim<br />

x→0 (1 + x) · ln(1 + x) + x<br />

(L ′ H)<br />

−1<br />

= lim<br />

= −1<br />

x→0 ln(1 + x) + 1 + 1 2<br />

= 0<br />

0<br />

b) lim<br />

x→0<br />

(x − 1) 2<br />

1 − cos x<br />

<br />

MATEMATICAS<br />

2º Bachillerato<br />

A<br />

d<br />

B<br />

s = B + m v<br />

r = A + l u<br />

CIENCIAS<br />

MaTEX<br />

<strong>Límites</strong><br />

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