闄堣嚜灞辨暣鐞?/p>
2018
骞村叏鍥介珮涓暟瀛﹁仈璧涚寤鸿禌鍖洪璧涗豢鐪熸ā鎷?/p>
(13)
涓�銆佸～绌洪锛堝叡
10
灏忛锛屾瘡灏忛
6
鍒嗭紝婊″垎
60
鍒嗐�傝鐩存帴灏嗙瓟妗堝啓鍦ㄩ涓殑妯嚎涓婏級
銆愮
1
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:
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宸茬煡
a
涓烘瀹炴暟锛屼笖
f
(
x
)=
1
a
锛?/p>
1
a
x
+1
鏄鍑芥暟锛屽垯
f
(
x
)
鐨勫�煎煙涓?/p>
.
銆愮
2
棰?/p>
:
鏋勯�犲嚱鏁拌В涓嶇瓑寮忋�?/p>
銆愮
3
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:
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銆愮
4
棰?/p>
:
涓夎鍑芥暟杞寲銆?/p>
宸茬煡
伪
銆?/p>
尾
鈭?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
3蟺
4
锛?/p>
蟺
锛?/p>
cos(
伪
+
尾
)=
4
5
锛?/p>
sin(
伪
锛?/p>
尾
)=
12
13
锛屽垯
cos
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?
尾
+
蟺
4
=
.
銆愮
5
棰?/p>
:
绛夎叞鍥涢潰浣撶殑澶栨帴鐞冦�?/p>
鍥涢潰浣?/p>
P
锛?/p>
ABC
锛?/p>
PA
=
BC
=
6
锛?/p>
PB
=
AC
=
8
锛?/p>
PC
=
AB
=
10
锛屽垯璇ュ洓闈綋澶栨帴鐞冪殑鍗婂緞涓?/p>
.
銆愮
6
棰?/p>
:
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|
AB
|
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.
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P
婊¤冻瀵逛换鎰忕殑
t
鈭?/p>
R
锛?/p>
鏈?/p>
|
|
AP
鈫?/p>
锛?/p>
tAB
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鈮?/p>
3
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鍒?/p>
PA
鈫?/p>
路
PB
鈫?/p>
鐨勬渶灏忓�间负
锛?/p>
姝?
鏃讹紝
|
PA
鈫?/p>
+
PB
鈫?/p>
|=
.
銆愮
7
棰?/p>
:
瑙ｆ瀽鍑犱綍闅愬惈褰㈠紡銆?/p>
璁?/p>
x
锛?/p>
y
鈭?/p>
R
婊¤冻
x
锛?/p>
6
y
锛?/p>
4
x
锛?/p>
y
+12=0
锛屽垯
x
鐨勫彇鍊艰寖鍥翠负
.
銆愮
8
棰?/p>
:
鍑芥暟鐨勯浂鐐广�?/p>
璁?/p>
f
(
x
)=|
x
+1|+|
x
|
锛?/p>
|
x
锛?/p>
2|
锛屽垯
f
(
f
(
x
))+1=0
鏈?/p>
涓笉鍚岀殑瑙?/p>
.
銆愮
9
棰?/p>
:
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宸茬煡铏氭暟
z
婊¤冻
z
3
+1=0
锛屽垯
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
z
z
锛?/p>
1
2018
+
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
1
z
锛?/p>
1
2018
=
.
銆愮
10
棰?/p>
:
鏌タ涓嶇瓑寮忋�?/p>
.
浜屻�佽В绛旈锛堝叡
5
灏忛锛屾瘡灏忛
20
鍒嗭紝婊″垎
100
鍒嗐�傝姹傚啓鍑鸿В棰樿繃绋嬶級
銆愮
11
棰橈細鏁板垪姹傚拰銆?/p>