Show that 
is increasing for all 
, except at 
.
Consider 
f’(x) at x=-1 is not defined
and for all x ∈ R- {-1}
f’(x)>0
hence f(x) is increasing.
1
Show that is increasing for all , except at .
Consider
f’(x) at x=-1 is not defined
and for all x ∈ R- {-1}
f’(x)>0
hence f(x) is increasing.