问题
选择题
|
答案
lim x→0
=1- 1+x x lim x→0 (1-
)(1+1+x
)1+x x(1+
)1+x
=lim x→0
=-x x(1+
)1+x
-lim x→0
=-1 1+ 1+x
．1 2
故选D．
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|
lim x→0
=1- 1+x x lim x→0 (1-
)(1+1+x
)1+x x(1+
)1+x
=lim x→0
=-x x(1+
)1+x
-lim x→0
=-1 1+ 1+x
．1 2
故选D．