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Materia:

Calculo Diferencial

Facilitador:

Bernardino Fuentes Solar

Alumno:

Juan Jos Rodrguez Ramrez

Tema:

Actividad 1, Nmeros Crticos

Aguascalientes, Ags. Marzo 2013

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A)

y= cos (x)

cos(x)=0

x = cos-1

x=0

B) f(x) = cos(x)y= -sen(x)-sen(x)=0x =-sen-1x = 0

C) f(x) = tan(x)y= sec2(x)sex2(x) = 0

1 = cos2(x)12 = cos(x)1= cos8x)X = cos-11

D) y=

()

E) f(x) = 3x4exy= 3x4ex+ex12x3y= 3ex(x4+4 x3)

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ex = 0 x1 = 0x4+4x3 = 0 x3(x+4) = 0x3 = 0x+4 = 0x2 = 4

F) f(x) = ln(x2+5)y= ()

X = 0