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2Opción 2.2

2,5 puntos

Responda únicamente a una de las dos opciones, o bien 2.1 o bien 2.2.

Sea la función real de variable real definida porf(x)={x+2(x−2)2si x<0,x2+x3x2+1si x≥0.f(x) = \begin{cases} \dfrac{x+2}{(x-2)^2} & \text{si } x < 0, \\ \dfrac{x^2+x^3}{x^2+1} & \text{si } x \geq 0. \end{cases}
a
Determine razonadamente el dominio de f(x)f(x).0,5 pts
b
Estudie la continuidad de f(x)f(x) en x=0x = 0.0,5 pts
c
Calcule la asíntota de f(x)f(x) cuando x→−∞x \to -\infty.0,5 pts
d
Calcule la asíntota de f(x)f(x) cuando x→+∞x \to +\infty.1 pt

Formulario

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ÁREAS BAJO LA DISTRIBUCIÓN DE PROBABILIDAD NORMAL ESTÁNDAR Los valores en la tabla representan el área bajo la curva normal hasta un valor positivo de zz.
Área bajo la curva normal hasta un valor positivo de z Campana normal simétrica con el área sombreada a la izquierda de z. Ejes con marcas sin valores numéricos. z
zz,00{,}00,01{,}01,02{,}02,03{,}03,04{,}04,05{,}05,06{,}06,07{,}07,08{,}08,09{,}09
0,00,50000,50400,50800,51200,51600,51990,52390,52790,53190,5359
0,10,53980,54380,54780,55170,55570,55960,56360,56750,57140,5753
0,20,57930,58320,58710,59100,59480,59870,60260,60640,61030,6141
0,30,61790,62170,62550,62930,63310,63680,64060,64430,64800,6517
0,40,65540,65910,66280,66640,67000,67360,67720,68080,68440,6879
0,50,69150,69500,69850,70190,70540,70880,71230,71570,71900,7224
0,60,72570,72910,73240,73570,73890,74220,74540,74860,75170,7549
0,70,75800,76110,76420,76730,77030,77340,77640,77940,78230,7852
0,80,78810,79100,79390,79670,79950,80230,80510,80780,81060,8133
0,90,81590,81860,82120,82380,82640,82890,83150,83400,83650,8389
1,00,84130,84380,84610,84850,85080,85310,85540,85770,85990,8621
1,10,86430,86650,86860,87080,87290,87490,87700,87900,88100,8830
1,20,88490,88690,88880,89070,89250,89440,89620,89800,89970,9015
1,30,90320,90490,90660,90820,90990,91150,91310,91470,91620,9177
1,40,91920,92070,92220,92360,92510,92650,92790,92920,93060,9319
1,50,93320,93450,93570,93700,93820,93940,94060,94180,94290,9441
1,60,94520,94630,94740,94840,94950,95050,95150,95250,95350,9545
1,70,95540,95640,95730,95820,95910,95990,96080,96160,96250,9633
1,80,96410,96490,96560,96640,96710,96780,96860,96930,96990,9706
1,90,97130,97190,97260,97320,97380,97440,97500,97560,97610,9767
2,00,97720,97780,97830,97880,97930,97980,98030,98080,98120,9817
2,10,98210,98260,98300,98340,98380,98420,98460,98500,98540,9857
2,20,98610,98640,98680,98710,98750,98780,98810,98840,98870,9890
2,30,98930,98960,98980,99010,99040,99060,99090,99110,99130,9916
2,40,99180,99200,99220,99250,99270,99290,99310,99320,99340,9936
2,50,99380,99400,99410,99430,99450,99460,99480,99490,99510,9952
2,60,99530,99540,99560,99570,99590,99600,99610,99620,99630,9964
2,70,99650,99660,99670,99680,99690,99700,99710,99720,99730,9974
2,80,99740,99750,99760,99770,99770,99780,99790,99790,99800,9981
2,90,99810,99820,99820,99830,99840,99840,99850,99850,99860,9986
3,00,99870,99870,99870,99880,99880,99890,99890,99890,99900,9990