绗竴绔犱範棰樼瓟妗?/p>
1.
璁炬�婚噺鍑芥暟涓?/p>
A
(
t
) =
t
2 + 2
t
+ 3
銆傝瘯璁＄畻绱Н鍑芥暟
a
(
t
)
鍜岀
n
涓椂娈电殑鍒╂伅
In
銆?/p>
瑙?/p>
:
鎶?/p>
t
= 0
浠ｅ叆寰?/p>
A
(0) = 3
浜庢槸
:
a
(
t
) =
A
(
t
)
A
(0)
=
t
2 + 2
t
+ 3
3
In
=
A
(
n
)
鈭?/p>
A
(
n
鈭?/p>
1)
= (
n
2 + 2
n
+ 3)
鈭?/p>
((
n
鈭?/p>
1)2 + 2(
n
鈭?/p>
1) + 3))
= 2
n
+ 1
2.
瀵逛互涓嬩袱绉嶆儏鍐佃绠椾粠
t
鏃跺埢鍒?/p>
n
(
t < n
)
鏃跺埢鐨勫埄鎭?/p>
: (1)
Ir
(0
< r <
n
); (2)
Ir
= 2
r
(0
< r < n
)
.
瑙?/p>
:
(1)
I
=
A
(
n
)
鈭?/p>
A
(
t
)
=
In
+
In
隆
1 +
銉?/p>
銉?/p>
銉?/p>
+
It
+1
=
n
(
n
+ 1)
2
鈭?/p>
t
(
t
+ 1)
2
(2)
I
=
A
(
n
)
鈭?/p>
A
(
t
)
=
危
n
k
=
t
+1
Ik
=
危
n
k
=
t
+1
Ik
= 2
n
+1
鈭?/p>
2
t
+1
3.
宸茬煡绱Н鍑芥暟鐨勫舰寮忎负
:
a
(
t
) =
at
2 +
b
銆傝嫢
0
鏃跺埢鎶曞叆鐨?/p>
100
鍏冪疮绉埌
3
鏃跺埢
涓?/p>
172
鍏冿紝璇曡绠楋細
5
鏃跺埢鎶曞叆鐨?/p>
100
鍏冨湪
10
鏃跺埢鐨勭粓鍊笺�?/p>
绗?/p>
1
椤?/p>