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1、目錄第一部分、最值問題分類匯編....................................................................................................................................2一、一條線段最值......................................................................................................................................
2、........3（一）單動點(diǎn)型..........................................................................................................................................31、所謂當(dāng)動點(diǎn)型，指的是：所求線段兩個端點(diǎn)之間只有一個動點(diǎn)的最值問題，...................32、動點(diǎn)運(yùn)動軌跡——直線型...................................................................
3、.........................................32.1動點(diǎn)軌跡為一條直線，利用“垂線段最短”.....................................................................3（1）當(dāng)一個點(diǎn)的坐標(biāo)可用某個字母的代數(shù)式表示，....................................................3（2）當(dāng)某一動點(diǎn)到某條直線的距離不變時，則點(diǎn)的軌跡為直線...............................3（3）當(dāng)某一動點(diǎn)與定線段一個端點(diǎn)連接后成
4、的角度不變，則該點(diǎn)軌跡是動點(diǎn).......53、動點(diǎn)運(yùn)動軌跡——圓或圓弧型....................................................................................................63.1.定點(diǎn)定長：動點(diǎn)到定點(diǎn)的距離不變，則點(diǎn)的軌跡是圓或圓弧........................................63.2定弦定角：當(dāng)某條變與該邊所對的角是定值是，該角的定點(diǎn)的軌跡是與哪壺............73.3動點(diǎn)軌跡為其他曲線，構(gòu)造三角形..............
5、.....................................................................11（二）雙動點(diǎn)型........................................................................................................................................125.1利用等量代換實現(xiàn)轉(zhuǎn)化.............................................................
6、..................................................125.2利用和差關(guān)系實現(xiàn)轉(zhuǎn)化..............................................................................................................125.3利用勾股定理實現(xiàn)轉(zhuǎn)化....................................................................................................
7、...........125.4利用三角形邊角關(guān)系實現(xiàn)轉(zhuǎn)化..................................................................................................12二、兩條線段最值...........................................................................................................................
