En este documento podrás encontrar 3 ejercicios sobre el estudio de asíntotas dada una función. Cada uno con su respectivo procedimiento desglosado esquemáticamente en pasos acompañado de gráficas para un mejor entendimiento y claridad de los conceptos.
, 2x 1
1) Estudia las asíntotas de la función f x .
x3
Asíntotas horizontales
2x 1 2x
lim f x lim lim lim 2 2
x x x 3 x x x
y 2 es una asíntota horizontal de f
2x 1 2x
lim f x lim lim lim 2 2
(por ambos lados)
x x x 3 x x x
Posición de la curva respecto de la asíntota
Le damos un valor lo suficientemente elevado x .
2 100 1 199
f 100 2.0515 2
100 3 97
Por lo tanto, por la derecha x , la curva está por encima de la
asíntota.
Le damos un valor lo suficientemente bajo x .
2 100 1 201 201
f 100 1,9515 2
100 3 103 103
Por lo tanto, por la izquierda x , la curva está por debajo de la
asíntota.
I.E.S. “Miguel de Cervantes” – Departamento de Matemáticas - GBG 1
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