3.1
鍑芥暟涓庢柟绋?/p>
3.1.1
鏂圭▼鐨勬牴涓庡嚱鏁扮殑闆剁偣绗簩璇炬椂
(
娈靛枩鐜?/p>
)
涓�銆佹暀瀛︾洰鏍?/p>
锛堜竴锛夋牳蹇冪礌鍏?/p>
閫氳繃杩欒妭璇惧涔狅紝
鐞嗚В闆剁偣瀛樺湪瀹氱悊锛?/p>
骞惰兘鍒濇纭畾鍏蜂綋鍑芥暟瀛樺湪闆剁偣鐨勫尯闂淬�?/p>
閫氳繃瀵瑰叿浣撳嚱
鏁板浘褰㈢殑瑙傚療銆?/p>
闆剁偣宸﹀彸鍑芥暟绗﹀彿鐨勭壒鐐瑰綊绾冲嚭闆剁偣瀛樺湪瀹氱悊锛?/p>
鍩瑰吇瀛︾敓鐩磋鎯宠薄銆?/p>
鏁板鎶借薄
绱犲吇锛?/p>
鍦ㄧ敤闆剁偣瀛樺湪瀹氱悊纭畾鍑芥暟闆剁偣鎵�鍦ㄥ尯闂寸殑瀛︿範杩囩▼涓煿鍏诲鐢熸暟瀛﹁繍绠椼�?/p>
鏁版嵁鍒嗘瀽绱?/p>
鍏伙紝鍦ㄧ敤闆剁偣瀹氱悊瑙ｅ喅涓�鍏冧簩娆℃柟绋嬫牴鐨勫垎甯冮棶棰樹腑鍩瑰吇瀛︾敓閫昏緫鎺ㄧ悊銆佹暟瀛﹁繍绠楃礌鍏?/p>
.
锛堜簩锛夊涔犵洰鏍?/p>
1.
浠庡叿浣撶殑浜屾鍑芥暟鍑哄彂锛岃瀵熼浂鐐逛袱渚у嚱鏁扮鍙凤紝褰掔撼鍑哄嚱鏁伴浂鐐瑰瓨鍦ㄥ畾鐞?/p>
.
2.
姝ｇ‘鐞嗚В闆剁偣瀛樺湪瀹氱悊锛屼簡瑙ｅ浘鍍忚繛缁笉鏂殑鎰忎箟鍙婁綔鐢紝鐭ラ亾瀹氱悊鍙槸鍑芥暟瀛樺湪闆?/p>
鐐圭殑涓�涓厖鍒嗘潯浠讹紝
浜嗚В鍑芥暟闆剁偣鍙兘涓嶆涓�涓�?/p>
鑳藉垵姝ョ敤闆剁偣瀹氱悊纭畾鍏蜂綋鍑芥暟瀛樺湪闆剁偣鐨?/p>
鍖洪棿
.
3.
鑳界敤闆剁偣瀹氱悊瑙ｅ喅涓�浜涘叿浣撳嚱鏁伴浂鐐归棶棰橈紝
鐗瑰埆鏄兘鐢ㄥ嚱鏁伴浂鐐瑰瓨鍦ㄥ畾鐞嗚В鍐充竴鍏冧簩娆℃柟绋?/p>
鏍圭殑鍒嗗竷闂銆?/p>
锛堜笁锛夊涔犻噸鐐?/p>
1.
鎺㈢储闆剁偣瀛樺湪瀹氱悊锛屽闆剁偣瀛樺湪瀹氱悊鐨勭悊瑙?/p>
;
2.
闆剁偣瀛樺湪瀹氱悊鐨勫簲鐢紝纭畾鍑芥暟闆剁偣鎵�鍦ㄥ尯闂达紝鐗瑰埆鏄竴鍏冧簩娆″嚱鏁伴浂鐐瑰垎甯冨尯
锛堝洓锛夊涔犻毦鐐?/p>
1.
闆剁偣瀛樺湪瀹氱悊鐨勬帰绌躲�佸瀹氱悊鐨勭悊瑙ｏ紱
2.
鐢ㄩ浂鐐瑰瓨鍦ㄥ畾鐞嗚В鍐冲嚱鏁伴浂鐐瑰垎甯冪壒鍒槸涓�鍏冧簩娆″嚱鏁伴浂鐐圭殑鍒嗗竷闂
.
浜屻�佹暀瀛﹁璁?/p>
锛堜竴锛?/p>
璇惧墠璁捐
1.
棰勪範浠诲姟
锛?/p>
1
锛夎涓�璇伙細闃呰鏁欐潗绗?/p>
87
椤垫帰绌惰嚦
88
椤?/p>
.
锛?/p>
2
锛夋兂涓�鎯筹細涓�鍏冧簩娆″嚱鏁扮殑闆剁偣鏈夊嚑涓紵闆剁偣宸︺�佸彸鍑芥暟鍊肩鍙锋湁浠�涔堢壒鐐癸紵
锛?/p>
3
锛夊啓涓�鍐欙細璇曟壘鍑哄嚱鏁?/p>
f
(
x
)=-
x
3
-3
x
+5
闆剁偣鎵�鍦ㄧ殑澶ц嚧鍖洪棿
.
2.
棰勪範鑷祴
锛?/p>
1
锛夋眰鍑芥暟
y
=
x
2
-5
x
-6
鐨勯浂鐐?/p>
.