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專題37導(dǎo)數(shù)證明恒成立問題大題必刷100題1.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求函數(shù)SKIPIF1<0在SKIPIF1<0上的最小值;(2)若SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的值.2.已知函數(shù)SKIPIF1<0.(1)討論SKIPIF1<0的單調(diào)性:(2)若SKIPIF1<0對(duì)SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.3.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)若SKIPIF1<0,證明:SKIPIF1<0;(2)若SKIPIF1<0恒成立,求a的取值范圍.4.已知函數(shù)SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)設(shè)函數(shù)SKIPIF1<0,若SKIPIF1<0時(shí),SKIPIF1<0恒成立,求實(shí)數(shù)a的取值范圍.5.已知SKIPIF1<0,SKIPIF1<0.(1)求SKIPIF1<0的單調(diào)區(qū)間;(2)若SKIPIF1<0時(shí),SKIPIF1<0恒成立,求m的取值范圍.6.已知曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程是SKIPIF1<0.(1)求SKIPIF1<0的解析式;(2)若對(duì)任意SKIPIF1<0,都有SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.7.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0,求函數(shù)SKIPIF1<0在SKIPIF1<0上的零點(diǎn)個(gè)數(shù);(2)當(dāng)SKIPIF1<0時(shí)都有SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.8.已知函數(shù)SKIPIF1<0.(1)若函數(shù)在SKIPIF1<0時(shí)取極值,求SKIPIF1<0的單調(diào)區(qū)間;(2)若當(dāng)SKIPIF1<0時(shí)SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.9.已知函數(shù)SKIPIF1<0在SKIPIF1<0處取得極值SKIPIF1<0,其中SKIPIF1<0為常數(shù).(1)試確定SKIPIF1<0的值;(2)討論函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(3)若對(duì)任意SKIPIF1<0,不等式SKIPIF1<0有解,求SKIPIF1<0的取值范圍.10.已知函數(shù)SKIPIF1<0,SKIPIF1<0,其中SKIPIF1<0,SKIPIF1<0為自然對(duì)數(shù)的底數(shù).(1)判斷函數(shù)SKIPIF1<0的單調(diào)性;(2)若不等式SKIPIF1<0在區(qū)間SKIPIF1<0上恒成立,求SKIPIF1<0的取值范圍.11.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求SKIPIF1<0的單調(diào)區(qū)間與極值;(2)若SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.12.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0,討論SKIPIF1<0的單調(diào)性;(2)若SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.13.己知函數(shù)SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)當(dāng)SKIPIF1<0時(shí),若SKIPIF1<0恒成立,求a的取值范圍.14.已知函數(shù)SKIPIF1<0,SKIPIF1<0(1)若SKIPIF1<0,求函數(shù)SKIPIF1<0的極值;(2)設(shè)函數(shù)SKIPIF1<0,求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(3)若存在SKIPIF1<0,使得SKIPIF1<0成立,求a的取值范圍.15.已知函數(shù)SKIPIF1<0(SKIPIF1<0).(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)是否存在SKIPIF1<0,使得不等式SKIPIF1<0恒成立?若存在,求出a的取值集合;若不存在,請(qǐng)說明理由.16.已知函數(shù)SKIPIF1<0.(1)設(shè)函數(shù)SKIPIF1<0,且SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍;(2)求證:SKIPIF1<0;(3)設(shè)函數(shù)SKIPIF1<0的兩個(gè)零點(diǎn)SKIPIF1<0、SKIPIF1<0,求證:SKIPIF1<0.17.已知函數(shù)SKIPIF1<0.(1)討論函數(shù)的單調(diào)性;(2)若對(duì)任意的SKIPIF1<0,都有SKIPIF1<0成立,求SKIPIF1<0的取值范圍.18.已知函數(shù)SKIPIF1<0SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求SKIPIF1<0在SKIPIF1<0處的切線方程;(2)設(shè)SKIPIF1<0,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,求SKIPIF1<0的取值范圍.19.已知函數(shù)SKIPIF1<0SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求函數(shù)SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程;(2)若函數(shù)SKIPIF1<0的極小值點(diǎn)為SKIPIF1<0,且SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.20.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求函數(shù)SKIPIF1<0最大值的表達(dá)式SKIPIF1<0;(2)若SKIPIF1<0對(duì)于任意的SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍:21.已知函數(shù)SKIPIF1<0,SKIPIF1<0,其中SKIPIF1<0.(1)若SKIPIF1<0,求曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程;(2)若SKIPIF1<0對(duì)于任意的SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.22.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0存在極值,求實(shí)數(shù)SKIPIF1<0的取值范圍;(2)若SKIPIF1<0,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0恒成立,且SKIPIF1<0有且只有一個(gè)實(shí)數(shù)解,證明:SKIPIF1<0.23.已知函數(shù)SKIPIF1<0.(1)證明:當(dāng)SKIPIF1<0時(shí),SKIPIF1<0;(2)若SKIPIF1<0,SKIPIF1<0,證明:SKIPIF1<0有且僅有一個(gè)零點(diǎn).24.已知函數(shù)SKIPIF1<0.(1)若曲線SKIPIF1<0在SKIPIF1<0處的切線方程為SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0,SKIPIF1<0的值;(2)若SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.25.已知函數(shù)f(x)=ex﹣alnx(a∈R且為常數(shù)).(1)討論函數(shù)f(x)的極值點(diǎn)個(gè)數(shù);(2)若f(x)≥(1﹣x)ex﹣(a﹣1)lnx+bx+1對(duì)任意的x∈(0,+∞)恒成立,求實(shí)數(shù)b的取值范圍.26.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的最值;(2)若不等式SKIPIF1<0在區(qū)間SKIPIF1<0上恒成立,求SKIPIF1<0的取值范圍.27.已知函數(shù)SKIPIF1<0,設(shè)SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線為SKIPIF1<0(1)求直線SKIPIF1<0的方程;(2)求證:除切點(diǎn)SKIPIF1<0之外,函數(shù)SKIPIF1<0的圖像在直線SKIPIF1<0的下方;(3)若存在SKIPIF1<0,使得不等式SKIPIF1<0成立,求實(shí)數(shù)SKIPIF1<0的取值范圍28.已知函數(shù)SKIPIF1<0,SKIPIF1<0,其中SKIPIF1<0.(1)證明:當(dāng)SKIPIF1<0時(shí),SKIPIF1<0;當(dāng)SKIPIF1<0時(shí),SKIPIF1<0;(2)用SKIPIF1<0表示m,n中的最大值,記SKIPIF1<0.是否存在實(shí)數(shù)a,對(duì)任意的SKIPIF1<0,SKIPIF1<0恒成立.若存在,求出a;若不存在,請(qǐng)說明理由.29.已知函數(shù)SKIPIF1<0,SKIPIF1<0,(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)若SKIPIF1<0,SKIPIF1<0,使SKIPIF1<0成立,求m的取值范圍.(3)當(dāng)SKIPIF1<0時(shí),若關(guān)于x的方程SKIPIF1<0有兩個(gè)實(shí)數(shù)根SKIPIF1<0,SKIPIF1<0,且SKIPIF1<0,求實(shí)數(shù)k的取值范圍,并且證明:SKIPIF1<0.30.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)若曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線與直線SKIPIF1<0平行,證明:SKIPIF1<0;(2)設(shè)SKIPIF1<0,若對(duì)SKIPIF1<0,均有SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.31.已知函數(shù)SKIPIF1<0.(1)討論SKIPIF1<0的單調(diào)性;(2)若SKIPIF1<0在區(qū)間SKIPIF1<0上恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.32.已知函數(shù)SKIPIF1<0.(1)討論SKIPIF1<0的單調(diào)性.(2)設(shè)SKIPIF1<0,若SKIPIF1<0恒成立,求a的取值范圍.33.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求SKIPIF1<0的極值;(2)若SKIPIF1<0對(duì)SKIPIF1<0恒成立,求a的取值范圍.34.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),討論SKIPIF1<0的單調(diào)性;(2)若SKIPIF1<0時(shí),SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.35.已知函數(shù)SKIPIF1<0(1)討論函數(shù)SKIPIF1<0的單調(diào)性;(2)當(dāng)SKIPIF1<0時(shí),求使SKIPIF1<0在區(qū)間SKIPIF1<0上恒成立的SKIPIF1<0的所有值.36.已知函數(shù)SKIPIF1<0.(1)當(dāng)時(shí)SKIPIF1<0,求曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程;(2)若對(duì)任意的SKIPIF1<0,都有SKIPIF1<0成立,求SKIPIF1<0的取值范圍.37.已知函數(shù)SKIPIF1<0,SKIPIF1<0,SKIPIF1<0…為自然對(duì)數(shù)的底數(shù).(1)討論SKIPIF1<0的單調(diào)性;(2)當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.38.已知函數(shù)SKIPIF1<0,其中SKIPIF1<0.(1)若SKIPIF1<0,求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)若不等式SKIPIF1<0對(duì)SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.39.設(shè)函數(shù)f(x)=x3-6x+5,x∈R.(1)求f(x)的極值點(diǎn);(2)若關(guān)于x的方程f(x)=a有3個(gè)不同實(shí)根,求實(shí)數(shù)a的取值范圍;(3)已知當(dāng)x∈(1,+∞)時(shí),f(x)≥k(x-1)恒成立,求實(shí)數(shù)k的取值范圍.40.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0,求函數(shù)SKIPIF1<0的最小值;(2)若SKIPIF1<0時(shí),SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.41.已知函數(shù)SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)性;(2)若函數(shù)SKIPIF1<0有最大值SKIPIF1<0,且SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.42.已知函數(shù)f(x)=x3+ax2+bx+c在x=-SKIPIF1<0與x=1時(shí)都取得極值(1)求a、b的值與函數(shù)f(x)的單調(diào)區(qū)間(2)若對(duì)SKIPIF1<0,不等式SKIPIF1<0恒成立,求c的取值范圍.43.已知函數(shù)SKIPIF1<0(1)當(dāng)SKIPIF1<0時(shí),求SKIPIF1<0在區(qū)間SKIPIF1<0中的最大值(2)若SKIPIF1<0對(duì)SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍44.已知函數(shù)SKIPIF1<0.(1)若函數(shù)SKIPIF1<0存在兩個(gè)極值點(diǎn)SKIPIF1<0,SKIPIF1<0,求SKIPIF1<0的取值范圍;(2)在(1)的條件下,若不等式SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.45.已知函數(shù)SKIPIF1<0,且曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線與直線SKIPIF1<0平行.(1)求實(shí)數(shù)SKIPIF1<0的值并判斷SKIPIF1<0的單調(diào)性;(2)記SKIPIF1<0,若SKIPIF1<0,且當(dāng)SKIPIF1<0時(shí),不等式SKIPIF1<0恒成立,求SKIPIF1<0的最大值.46.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求SKIPIF1<0的極值;(2)若SKIPIF1<0在SKIPIF1<0上有解,求實(shí)數(shù)SKIPIF1<0的取值范圍.47.已知函數(shù)SKIPIF1<0的圖象與直線SKIPIF1<0相切.(1)求實(shí)數(shù)SKIPIF1<0的值;(2)若SKIPIF1<0,且SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的最小值.48.已知函數(shù)SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)若對(duì)任意的SKIPIF1<0,都有SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的最小值.49.設(shè)函數(shù)SKIPIF1<0.(1)若SKIPIF1<0是SKIPIF1<0的極值點(diǎn),求SKIPIF1<0的單調(diào)區(qū)間;(2)若SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.50.已知函數(shù)SKIPIF1<0.(1)當(dāng)a=3時(shí),求f(x)的單調(diào)區(qū)間;(2)當(dāng)a=1時(shí),關(guān)于x的不等式SKIPIF1<0在[0,)上恒成立,求k的取值范圍.51.已知函數(shù)SKIPIF1<0.(1)若函數(shù)SKIPIF1<0在SKIPIF1<0處取得極值,求實(shí)數(shù)SKIPIF1<0的值;(2)當(dāng)SKIPIF1<0時(shí),不等式SKIPIF1<0對(duì)于SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的值.52.已知函數(shù)SKIPIF1<0,SKIPIF1<0,SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)若對(duì)任意SKIPIF1<0都有SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.53.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)性;(2)若關(guān)于SKIPIF1<0的不等式SKIPIF1<0對(duì)任意SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.54.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)當(dāng)SKIPIF1<0時(shí),證明:SKIPIF1<0時(shí),當(dāng)SKIPIF1<0恒成立.55.已知函數(shù)SKIPIF1<0.(1)若曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程為SKIPIF1<0,求SKIPIF1<0的值;(2)若SKIPIF1<0,討論函數(shù)SKIPIF1<0的單調(diào)性;(3)設(shè)函數(shù)SKIPIF1<0,若至少存在一個(gè)SKIPIF1<0,使得SKIPIF1<0成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.56.已知函數(shù)SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的極值;(2)當(dāng)x>0時(shí),f(x)>0恒成立,求正整數(shù)k的最大值.57.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求SKIPIF1<0的極值;(2)若對(duì)任意的SKIPIF1<0,SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.58.已知函數(shù)SKIPIF1<0.(1)討論SKIPIF1<0的單調(diào)性;(2)若SKIPIF1<0,SKIPIF1<0,求SKIPIF1<0的取值范圍.59.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0,求SKIPIF1<0的單調(diào)區(qū)間;(2)若SKIPIF1<0,求a的取值范圍.60.已知函數(shù)SKIPIF1<0(e是自然對(duì)數(shù)的底數(shù),SKIPIF1<0).(1)討論函數(shù)SKIPIF1<0單調(diào)性;(2)若SKIPIF1<0,SKIPIF1<0,求a的取值范圍.61.設(shè)函數(shù)SKIPIF1<0,SKIPIF1<0,SKIPIF1<0是自然對(duì)數(shù)的底數(shù).(1)若SKIPIF1<0,求函數(shù)SKIPIF1<0的極值;(2)當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,求SKIPIF1<0的取值范圍.62.已知函數(shù)SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)性;(2)若SKIPIF1<0恒成立,求α的取值范圍.63.已知函數(shù)SKIPIF1<0,SKIPIF1<0,其中SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求證:SKIPIF1<0;(2)若任意SKIPIF1<0,恒有SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.64.已知函數(shù)SKIPIF1<0,SKIPIF1<0,SKIPIF1<0.(1)求SKIPIF1<0的單調(diào)區(qū)間;(2)若對(duì)于任意SKIPIF1<0,SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.65.已知函數(shù)SKIPIF1<0(SKIPIF1<0為常數(shù))SKIPIF1<01)討論函數(shù)SKIPIF1<0的單調(diào)性;SKIPIF1<02)不等式SKIPIF1<0在SKIPIF1<0上恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.66.若函數(shù)SKIPIF1<0,SKIPIF1<0.(1)討論SKIPIF1<0的極值點(diǎn)的個(gè)數(shù);(2)若SKIPIF1<0時(shí),SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.67.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍;(2)若不等式SKIPIF1<0對(duì)SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.68.已知函數(shù)SKIPIF1<0.(1)設(shè)SKIPIF1<0,若SKIPIF1<0,討論函數(shù)SKIPIF1<0的單調(diào)性;(2)若關(guān)于SKIPIF1<0的不等式SKIPIF1<0在SKIPIF1<0上恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.69.設(shè)函數(shù)SKIPIF1<0,其中SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求函數(shù)SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程;(2)討論函數(shù)SKIPIF1<0極值點(diǎn)的個(gè)數(shù),并說明理由;(3)若SKIPIF1<0,SKIPIF1<0成立,求SKIPIF1<0的取值范圍.70.已知函數(shù)SKIPIF1<0,SKIPIF1<0SKIPIF1<0(1)討論函數(shù)SKIPIF1<0的導(dǎo)數(shù)SKIPIF1<0的單調(diào)性(2)當(dāng)SKIPIF1<0時(shí),不等式SKIPIF1<0對(duì)SKIPIF1<0恒成立,求實(shí)數(shù)m的取值范圍.71.已知函數(shù)SKIPIF1<0(1)若SKIPIF1<0在SKIPIF1<0處取得極值,求SKIPIF1<0的值及函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(2)若SKIPIF1<0,求SKIPIF1<0的取值范圍.72.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),求曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程;(2)若SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.73.已知函數(shù)SKIPIF1<0為奇函數(shù),且在SKIPIF1<0處取得極大值2.(1)求SKIPIF1<0的解析式;(2)若SKIPIF1<0對(duì)于任意的SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.74.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0,求SKIPIF1<0在SKIPIF1<0處的切線方程;(2)若函數(shù)SKIPIF1<0在SKIPIF1<0處取得極值,且存在SKIPIF1<0,使得SKIPIF1<0成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.75.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)令函數(shù)SKIPIF1<0,①若函數(shù)SKIPIF1<0的圖象與直線SKIPIF1<0:SKIPIF1<0相切,求實(shí)數(shù)SKIPIF1<0的值;②若不等式SKIPIF1<0恒成立,求整數(shù)SKIPIF1<0的最大值;(2)若函數(shù)SKIPIF1<0恰有兩個(gè)極值點(diǎn),求實(shí)數(shù)SKIPIF1<0的取值范圍.76.已知函數(shù)SKIPIF1<0(SKIPIF1<0).(1)當(dāng)SKIPIF1<0時(shí),試求函數(shù)圖像在點(diǎn)SKIPIF1<0處的切線方程;(2)若函數(shù)SKIPIF1<0有兩個(gè)極值點(diǎn)SKIPIF1<0、SKIPIF1<0(SKIPIF1<0),且不等式SKIPIF1<0恒成立,試求實(shí)數(shù)SKIPIF1<0的取值范圍.77.已知函數(shù)SKIPIF1<0.(1)若SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線斜率為SKIPIF1<0.①求實(shí)數(shù)SKIPIF1<0的值;②求SKIPIF1<0的單調(diào)區(qū)間和極值.(2)若存在SKIPIF1<0,使得SKIPIF1<0成立,求SKIPIF1<0的取值范圍.78.已知函數(shù)SKIPIF1<0SKIPIF1<0.(1)如果曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線的斜率是2,求此時(shí)的切線方程;(2)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間;(3)設(shè)SKIPIF1<0,求證:當(dāng)SKIPIF1<0時(shí),SKIPIF1<0恒成立.79.已知函數(shù)SKIPIF1<0.(1)求曲線SKIPIF1<0在點(diǎn)SKIPIF1<0處的切線方程;(2)設(shè)函數(shù)SKIPIF1<0,若對(duì)SKIPIF1<0,SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.80.已知函數(shù)SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)性;(2)設(shè)SKIPIF1<0,SKIPIF1<0是函數(shù)SKIPIF1<0的兩個(gè)極值點(diǎn),若SKIPIF1<0,且SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的最大值.81.已知函數(shù)SKIPIF1<0.(1)函數(shù)SKIPIF1<0,求SKIPIF1<0的單調(diào)區(qū)間和極值.(2)求證:對(duì)于SKIPIF1<0,總有SKIPIF1<0.82.已知SKIPIF1<0,SKIPIF1<0,對(duì)一切SKIPIF1<0,SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.83.設(shè)函數(shù)SKIPIF1<0,SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間和極值;(2)已知當(dāng)SKIPIF1<0時(shí),SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.84.已知SKIPIF1<0,SKIPIF1<0.(1)對(duì)一切實(shí)數(shù)SKIPIF1<0,SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍;(2)求證:任意SKIPIF1<0,SKIPIF1<0.85.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間.(2)若SKIPIF1<0對(duì)任意SKIPIF1<0成立,求正實(shí)數(shù)SKIPIF1<0的取值范圍.(3)證明:SKIPIF1<0.86.已知函數(shù)SKIPIF1<0,SKIPIF1<0.(1)討論函數(shù)SKIPIF1<0的單調(diào)性;(2)若SKIPIF1<0時(shí)有SKIPIF1<0恒成立,求SKIPIF1<0的取值范圍.87.已知函數(shù)SKIPIF1<0.(1)討論SKIPIF1<0的單調(diào)性;(2)關(guān)于x的不等式SKIPIF1<0恒成立,求整數(shù)m的最小值.88.已知函數(shù)SKIPIF1<0的圖像在點(diǎn)SKIPIF1<0處的切線方程為SKIPIF1<0.(1)求SKIPIF1<0,SKIPIF1<0的值;(2)當(dāng)SKIPIF1<0時(shí),證明:SKIPIF1<0對(duì)SKIPIF1<0恒成立.89.已知函數(shù)SKIPIF1<0,(1)先證明單調(diào)性,再求函數(shù)SKIPIF1<0在SKIPIF1<0上的最小值;(2)若對(duì)SKIPIF1<0,使得SKIPIF1<0,求實(shí)數(shù)SKIPIF1<0的取值范圍.90.已知函數(shù)SKIPIF1<0.(1)求函數(shù)SKIPIF1<0的極值;(2)若SKIPIF1<0對(duì)SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.91.已知函數(shù)SKIPIF1<0,SKIPIF1<0(1)求函數(shù)SKIPIF1<0的單調(diào)區(qū)間和極值;(2)若對(duì)任意SKIPIF1<0,不等式SKIPIF1<0恒成立,求實(shí)數(shù)SKIPIF1<0的取值范圍.92.已知函數(shù)SKIPIF1<0,SKIPIF1
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