銆婂井瑙傜粡娴庡銆?/p>
锛堥珮楦夸笟绗洓鐗堬級绛旀
绗簩绔?/p>
1.
宸茬煡鏌愪竴鏃舵湡鍐呮煇鍟嗗搧鐨勯渶姹傚嚱鏁颁负
Q
d
=50-5P
锛屼緵缁欏嚱
鏁颁负
Q
s
=-10+5p
銆?/p>
锛?/p>
1
锛?/p>
姹?/p>
鍧囪 浠锋牸
P
e
鍜屽潎琛℃暟閲?/p>
Q
e
锛屽苟浣滃嚭鍑犱綍鍥惧舰銆?/p>
锛?/p>
2
锛?/p>
鍋?/p>
瀹氫緵缁欏嚱鏁颁笉鍙橈紝鐢变簬娑堣垂鑰呮敹鍏ユ按骞虫彁楂橈紝浣块渶姹傚嚱鏁板彉
涓?/p>
Q
d
=60-5P
銆傛眰鍑虹浉搴旂殑鍧囪 浠锋牸
P
e
鍜屽潎琛℃暟閲?/p>
Q
e
锛屽苟浣滃嚭鍑犱綍鍥?/p>
褰€�?/p>
锛?/p>
3
锛?/p>
鍋?/p>
瀹氶渶姹傚嚱鏁颁笉鍙橈紝鐢变簬鐢熶骇鎶�鏈按骞虫彁楂橈紝浣夸緵缁欏嚱鏁板彉涓?/p>
Q
s
=-5+5p
銆?/p>
姹傚嚭鐩稿簲鐨勫潎琛′环鏍?/p>
P
e
鍜屽潎琛℃暟閲?/p>
Q
e
锛?/p>
骞朵綔鍑哄嚑浣曞浘褰€�?/p>
锛?/p>
4
锛?/p>
鍒?/p>
鐢紙
1
锛?/p>
锛?/p>
2
锛?/p>
锛?/p>
3
锛?/p>
锛岃鏄庨潤鎬佸垎鏋愬拰姣旇緝闈欐�佸垎鏋愮殑鑱旂郴鍜屽尯
鍒�?/p>
锛?/p>
5
锛?/p>
鍒?/p>
鐢紙
1
锛?/p>
锛?/p>
2
锛?/p>
锛?/p>
3
锛?/p>
锛岃鏄庨渶姹傚彉鍔ㄥ拰渚涚粰鍙樺姩瀵瑰潎琛′环鏍煎拰鍧?/p>
琛℃暟閲忕殑褰卞搷
.
瑙ｇ瓟
:(1)
灏嗛渶姹傚嚱鏁?/p>
d
Q
=
50-5P
鍜屼緵缁欏嚱鏁?/p>
s
Q
=-10+5P
浠ｅ叆鍧囪 鏉?/p>
浠?/p>
d
Q
=
s
Q
,
鏈?/p>
:
50- 5P= -10+5P
寰?/p>
: P
e
=6
浠ュ潎琛′环鏍?/p>
P
e
=6
浠ｅ叆闇�姹傚嚱鏁?/p>
d
Q
=50-5p ,
寰?/p>
:
Q
e
=50-5
20
6
飥?/p>
飩?/p>
鎴栬�?/p>
,
浠ュ潎琛′环鏍?/p>
Pe =6
浠ｅ叆渚涚粰鍑芥暟
s
Q
=-10+5P
,
寰?/p>
:
Q
d