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 1,0,1,0," ￥K?i,
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n
u
l ??
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l ?
D 0
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0
x x→
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!
0
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xx
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0
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D
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? lim ( )
x
f xA
→∞
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2
A
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()
2
A
fx A ε?<=,'
3
0()
22
A
f xA<< <,¤￡,
4,?
 { }
n
x, ?
21
()
k
xak
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2
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k
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n
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)→∞,
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()
k
xak
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1
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1
kK>
H,μ
21k
xaε
<;
2
()
k
xak→→∞,#

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2
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2k
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12
max{2 1,2 }NKK=?,? nN>
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n
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n
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2
5,￡
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π
sin
x
àμK,
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7
1
n
x
n
=,
2
41
n
y
n
=
+
(1,2,)n= ",5 lim 0
n
n
x
→∞
=,lim 0
n
n
y
→∞
=,?
ππ
lim sin 0 lim sin 1
nn
nn
xy
→∞ →∞
=≠ =,
[
π
lim sin
n
x
→∞
?i,
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7
2
(2 π)
n
x n=,
2
1
[(2 )π]
2
n
yn=+ (1,2,)n= ",5 lim
n
n
x
→∞
=+∞,lim
n
n
y
→∞
=
+∞,?
lim sin 0 lim sin 1
nn
nn
xy
→∞ →∞
=≠ =,
[ lim sin
n
x
→∞
?i,