新高考數(shù)學一輪復習精講精練9.4 單調性的分類討論（基礎版）（原卷版）

9.4單調性的分類討論（精講）（基礎版）思維導圖思維導圖考點呈現(xiàn)考點呈現(xiàn)例題剖析例題剖析考點一一根型【例1】（2022·河北邯鄲·高三開學考試）已知函數(shù)SKIPIF1<0，討論函數(shù)SKIPIF1<0的單調性；【一隅三反】1．（2022·福建·高三階段練習）已知函數(shù)SKIPIF1<0，討論SKIPIF1<0的單調性；2．（2022·河南）已知函數(shù)SKIPIF1<0，討論SKIPIF1<0的單調性；3．（2022·安徽·高三開學考試）已知函數(shù)SKIPIF1<0，討論函數(shù)SKIPIF1<0在SKIPIF1<0上的單調性;考點二兩根型【例2-1】（2022·遼寧·沈陽市第四中學高三階段練習）已知函數(shù)SKIPIF1<0，討論函數(shù)SKIPIF1<0的單調性；【例2-2】（2022·黑龍江·哈爾濱三中高三階段練習）已知函數(shù)SKIPIF1<0.(1)當SKIPIF1<0時，求曲線SKIPIF1<0在點SKIPIF1<0的切線方程；(2)討論函數(shù)SKIPIF1<0的單調性.【一隅三反】1．（2022·遼寧錦州）已知函數(shù)SKIPIF1<0，其中SKIPIF1<0為實常數(shù)．(1)當SKIPIF1<0時，求曲線SKIPIF1<0在點SKIPIF1<0處的切線方程；(2)討論SKIPIF1<0的單調性；2．（2022·全國·高二課時練習）求函數(shù)SKIPIF1<0的單調區(qū)間.3．（2022·湖北·襄陽五中高三開學考試）已知函數(shù)SKIPIF1<0（其中SKIPIF1<0為自然對數(shù)的底數(shù)）．討論SKIPIF1<0的單調性；考點三判別式型【例3】（2022·福建泉州·模擬預測）已知函數(shù)SKIPIF1<0討論SKIPIF1<0的單調性；【一隅三反】1．（2022·全國·高三專題練習）已知函數(shù)SKIPIF1<0，記SKIPIF1<0的導函數(shù)為SKIPIF1<0，討論SKIPIF1<0的單調性；2.（2022山西）若函數(shù)SKIPIF1<0，SKIPIF1<0，SKIPIF1<0為常數(shù)，求函數(shù)SKIPIF1<0的單調區(qū)間；3（2022黑龍江）已知函數(shù)SKIPIF1<0，令SKIPIF1<0，討論函數(shù)SKIPIF1<0的單調性；9.4單調性的分類討論（精練）（基礎版）題組一題組一一根型1．（2022·廣西）已知函數(shù)SKIPIF1<0，討論SKIPIF1<0的單調性；2．（2022·山東臨沂）已知函數(shù)SKIPIF1<0，討論SKIPIF1<0的單調性；3（2022·云南·羅平縣第一中學）已知函數(shù)SKIPIF1<0，討論函數(shù)SKIPIF1<0的單調性與極值;4．（2022·河南·鄭州四中高三階段練習（文））已知函數(shù)SKIPIF1<0為自然對數(shù)的底數(shù)，討論SKIPIF1<0的單調性;5．（2022·湖南·永州市第一中學高三開學考試）已知函數(shù)SKIPIF1<0（SKIPIF1<0是自然對數(shù)的底數(shù)），討論函數(shù)SKIPIF1<0的單調性；6．（2022·云南師大附中高三階段練習）設SKIPIF1<0，其中SKIPIF1<0。討論SKIPIF1<0的單調性；題組二題組二兩根型1．（2022·天津·南開中學模擬預測）已知函數(shù)SKIPIF1<0，SKIPIF1<0為函數(shù)SKIPIF1<0的導函數(shù)．討論SKIPIF1<0的單調性；2．（2022·廣東·潮州市瓷都中學三模）已知函數(shù)SKIPIF1<0，討論函數(shù)SKIPIF1<0的單調性；3．（2022·安徽）已知函數(shù)SKIPIF1<0，討論f（x）的單調性；4．（2022·北京市）已知函數(shù)SKIPIF1<0（SKIPIF1<0），求SKIPIF1<0的單調區(qū)間；5．（2022·廣東廣州）已知函數(shù)SKIPIF1<0.求函數(shù)SKIPIF1<0的單調區(qū)間；6．（2022·安徽蚌埠·一模）已知函數(shù)SKIPIF1<0，討論SKIPIF1<0的單調性；7．（2022·河南安陽）已知函數(shù)SKIPIF1<0，SKIPIF1<0，求SKIPIF1<0的單調區(qū)間；8．（2022·黑龍江哈爾濱·高三開學考試）已知函數(shù)SKIPIF1<0，SKIPIF1<0，討論函數(shù)SKIPIF1<0單調性；9．（2022·福建省福安市第一中學高三階段練習）設函數(shù)SKIPIF1<0，SKIPIF1<0，討論函數(shù)SKIPIF1<0的單調性；題組三題組三判別式型1．（2022·陜西）已知函數(shù)SKIPIF1<0，試討論SKIPIF1<0的單調區(qū)間.2．（2022