骞夸笢涓撴彃鏈�冭瘯璧勬簮缃?/p>
http://www.xunaizhan.com
骞夸笢鐪?/p>
2012
骞存櫘閫氶珮绛夊鏍℃湰绉戞彃鐝敓鎷涚敓鑰冭瘯
銆婇珮绛夋暟瀛︺�?/p>
锛堝叕鍏辫锛夎瘯棰?/p>
骞夸笢涓撴彃鏈�冭瘯璧勬簮缃?/p>
http://www.xunaizhan.com
涓�銆佸崟椤归�夋嫨棰橈紙鏈ぇ棰樺叡
5
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3
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15
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瑕佹眰锛?/p>
1
锛庡凡缁忎笁涓暟鍒?/p>
{a
n
锛?/p>
銆?/p>
{b
n
锛夊拰
{c
n
锛夋弧瓒?/p>
a
n
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b
n
飩?/p>
c
n
锛?/p>
n
鈭?/p>
N
+
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锛屼笖
飩?
飩?/p>
n
lim
a
n
=a
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飩?/p>
n
lim
c
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=c(a
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b
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锛屽垯鏁板垪
{ b
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A
锛庢湁鐣?/p>
B
锛庢棤鐣?/p>
C
锛庢敹鏁?/p>
D
锛庡彂鏁?/p>
2
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x=0
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0
x
2
-
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1
2
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飩?/p>
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x
x
x
e
x
f
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锛?
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锝?/p>
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C
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3
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x
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0
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2
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3
D
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6
4
锛庡鏋滄洸绾?/p>
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x
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1
C
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0
D
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-1
5
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r
r
f
d
I
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飦?
鍖?
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I=
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2
1
2
2
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x
x
dy
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x
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飪?/p>
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2
1
0
2
2
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dy
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x
f
dx
C
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飥?/p>
2
1
2
2
0
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(
y
y
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x
f
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D
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2
1
0
2
2
0
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(
y
dx
y
x
f
dy
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5
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
15
鍒嗭級
6
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f(x)
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x
0
澶勫彲鍒帮紝涓?/p>
f
鈥?/p>
(x
0
)=3
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飥?/p>
飦?/p>
飥?/p>
飦?/p>
飥?/p>
飩?/p>
飦?/p>
x
x
f
x
x
f
x
)
(
)
2
(
lim
0
0
0
.
7
锛庤嫢
飪?/p>
飥?
dx
x
x
x
f
tan
)
(
锛屽垯
f
鈥?
锛?/p>
飦?/p>
锛?/p>
=
锛?/p>
8
锛庤嫢鏇茬嚎
y=x
3
+ax
2
+bx+l
鏈夋嫄鐐?/p>
(-l
锛?/p>
0)
锛屽垯甯告暟
b=
____
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