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Límites y continuidad - Amolasmates

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Sección 8: El número e<br />

x 2x + 1<br />

Ejemplo 8.1. Calcular lim<br />

x→+∞ 2x<br />

34<br />

Solución:<br />

x 2x + 1<br />

lim<br />

= 1<br />

x→+∞ 2x<br />

∞ lim<br />

x→+∞<br />

= e<br />

x<br />

<br />

2x + 1<br />

− 1<br />

2x =<br />

lim<br />

x→+∞<br />

= e<br />

x<br />

<br />

1<br />

2x = e 1/2 = √ e<br />

−2x 2x + 1<br />

Ejemplo 8.2. Calcular lim<br />

x→+∞ 2x − 1<br />

Solución:<br />

−2x 2x + 1<br />

lim<br />

x→+∞ 2x − 1<br />

= 1 ∞ lim<br />

x→+∞<br />

= e<br />

−2x<br />

<br />

2x + 1<br />

− 1<br />

2x − 1 =<br />

lim<br />

x→+∞<br />

= e<br />

−2x<br />

<br />

2<br />

2x − 1 = e -2<br />

<br />

<br />

MATEMATICAS<br />

1º Bachillerato<br />

A<br />

d<br />

B<br />

s = B + m v<br />

r = A + l u<br />

SOCIALES<br />

MaTEX<br />

<strong>Límites</strong> y<br />

Continuidad<br />

◭◭ ◮◮<br />

◭ ◮<br />

◭ Doc Doc ◮<br />

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