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Question #92499

1 Answer

Jun 16, 2017

Range: #f(x) in (-oo,+oo)#

Explanation:

Note that #f(x)# is not defined at #x=1#

However
#color(white)("XXX")#As #xrarr1^-#
#color(white)("XXXXXX")f(x)rarr -oo#
and
#color(white)("XXX")#As #xrarr1^+#
#color(white)("XXXXXX")f(x)rarr +oo#

enter image source here

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