alexwing285 alexwing285

16-05-2017
Mathematics

contestada

What are the excluded values of x for [tex] \frac{x+1}{x^2-1} [/tex]

A. x = –1, x = 0, x = 1
B. x = –1, x = 0
C. x = 0, x = 1
D. x = –1, x = 1

Respuesta :

WojtekR WojtekR

16-05-2017

Denominator:

[tex]x^2-1=(x+1)(x-1)=\big(x-(-1)\big)(x-1)[/tex]

so excluded values are x = -1 and x = 1.

Answer D.

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yamilamartinezort5qj yamilamartinezort5qj

03-12-2018

The answer would be D. x=-1, x=1

Answer Link

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