【摘要】一:指數(shù)求定義域=的定義域是________.3.?函數(shù)的圖象必經(jīng)過(guò)定點(diǎn)??????????.4.?如果指數(shù)函數(shù)在上的最大值與最小值的差為,則實(shí)數(shù)???????
2025-07-01 17:00
【摘要】●高考明方向,知道用換底公式能將一般對(duì)數(shù)轉(zhuǎn)化成自然對(duì)數(shù)或常用對(duì)數(shù);了解對(duì)數(shù)在簡(jiǎn)化運(yùn)算中的作用.,理解對(duì)數(shù)函數(shù)的單調(diào)性,掌握對(duì)數(shù)函數(shù)圖象通過(guò)的特殊點(diǎn)..=ax與對(duì)數(shù)函數(shù)y=logax互為反函數(shù)(a0,且a≠1).★備考知考情 通過(guò)對(duì)近幾年高考試題的統(tǒng)計(jì)分析可以看出,本節(jié)內(nèi)容在高考中屬于必考內(nèi)容,且占有重要的分量,主要以選擇題的形式命題,也有填空題和解答
2025-06-29 17:44
【摘要】對(duì)數(shù)函數(shù)(一)對(duì)數(shù)1.對(duì)數(shù)的概念:一般地,如果,那么數(shù)叫做以為底的對(duì)數(shù),記作:(—底數(shù),—真數(shù),—對(duì)數(shù)式)說(shuō)明:注意底數(shù)的限制,且;;注意對(duì)數(shù)的書寫格式.兩個(gè)重要對(duì)數(shù):常用對(duì)數(shù):以10為底的對(duì)數(shù);自然對(duì)數(shù):以無(wú)理數(shù)為底的對(duì)數(shù)的對(duì)數(shù).(二)對(duì)數(shù)的運(yùn)算性質(zhì)如果,且,,,那么:·+;-;.
2025-06-30 14:49
【摘要】實(shí)用標(biāo)準(zhǔn)文案對(duì)數(shù)函數(shù)(一)對(duì)數(shù)1.對(duì)數(shù)的概念:一般地,如果,那么數(shù)叫做以為底的對(duì)數(shù),記作:(—底數(shù),—真數(shù),—對(duì)數(shù)式)說(shuō)明:注意底數(shù)的限制,且;;注意對(duì)數(shù)的書寫格式.兩個(gè)重要對(duì)數(shù):常用對(duì)數(shù):以10為底的對(duì)數(shù);自然對(duì)數(shù):以無(wú)理數(shù)為底的對(duì)數(shù)的對(duì)數(shù).(二)對(duì)數(shù)的運(yùn)算性質(zhì)如果,且,,,那么:·+;-
2025-06-29 23:42
【摘要】(一)指數(shù)與指數(shù)函數(shù)1.根式(1)根式的概念n為奇數(shù)n為偶數(shù)(2).兩個(gè)重要公式①;②(注意必須使有意義)。2.有理數(shù)指數(shù)冪(1)冪的有關(guān)概念①正數(shù)的正分?jǐn)?shù)指數(shù)冪:;②正數(shù)的負(fù)分?jǐn)?shù)指數(shù)冪:③0的正分?jǐn)?shù)指數(shù)冪等于0,0的負(fù)分?jǐn)?shù)指數(shù)冪沒有意義.注:分?jǐn)?shù)指數(shù)冪與根式可以互化,通常利用分?jǐn)?shù)指數(shù)冪進(jìn)行根式的運(yùn)算。
2025-07-01 01:24
【摘要】一、對(duì)數(shù)函數(shù)指數(shù)函數(shù)y=ax(a0且a≠1)對(duì)數(shù)函數(shù)y=(a0且a≠1)圖象a1010a1定義域(-∞,+∞)(0,+∞)值域(0,+∞)(-∞,+∞)奇偶性非奇非偶非奇非偶單調(diào)性增函數(shù)減函數(shù)增函數(shù)減函數(shù)過(guò)定點(diǎn)(0,1)即a0=1
【摘要】必修1基本初等函數(shù)知識(shí)點(diǎn)整理對(duì)數(shù)及對(duì)數(shù)的運(yùn)算1.對(duì)數(shù)的概念 一般地,如果,那么數(shù)叫做以為底的對(duì)數(shù),記作:其中:是底數(shù),是真數(shù),是對(duì)數(shù)式兩個(gè)重要對(duì)數(shù):常用對(duì)數(shù):以10為底的對(duì)數(shù);自然對(duì)數(shù):以無(wú)理數(shù)為底的對(duì)數(shù)的對(duì)數(shù).2對(duì)數(shù)式與指數(shù)式的互化 3對(duì)數(shù)的性質(zhì)(1)負(fù)數(shù)和零沒有對(duì)數(shù);(2)1的對(duì)數(shù)是零:
2025-06-29 18:23
【摘要】圓夢(mèng)教育2012個(gè)性化輔導(dǎo)教案課題指數(shù)函數(shù)與對(duì)數(shù)函數(shù)授課教師授課時(shí)間學(xué)生教學(xué)目標(biāo)1.理解指數(shù)函數(shù)與對(duì)數(shù)函數(shù)的定義;2.能簡(jiǎn)單的計(jì)算指數(shù)函數(shù)與對(duì)數(shù)函數(shù);3.
2025-07-01 01:29
【摘要】四隊(duì)中學(xué)教案紙(備課人:陳敏敏學(xué)科:高三數(shù)學(xué))備課時(shí)間教學(xué)課題指數(shù)函數(shù)與對(duì)數(shù)函數(shù)教時(shí)計(jì)劃1教學(xué)課時(shí)1教學(xué)目標(biāo)1、熟練掌握指數(shù)函數(shù)與對(duì)數(shù)函數(shù)的概念、圖像和性質(zhì),重點(diǎn)抓住底數(shù)對(duì)函數(shù)性質(zhì)影響2、理解指數(shù)函數(shù)和對(duì)數(shù)函數(shù)互為反函數(shù)及其它們的圖像和性質(zhì)的內(nèi)在聯(lián)系3、利用指數(shù)函數(shù)和對(duì)數(shù)函數(shù)的性質(zhì)解決問(wèn)題重點(diǎn)
2024-08-30 13:00
【摘要】基本初等函數(shù)知識(shí)點(diǎn)(1)n次方根的定義:若,則稱x為a的n次方根,“”是方根的記號(hào)。在實(shí)數(shù)范圍內(nèi),正數(shù)的奇次方根是一個(gè)正數(shù),負(fù)數(shù)的奇次方根是一個(gè)負(fù)數(shù),0的奇次方根是0;正數(shù)的偶次方根是兩個(gè)絕對(duì)值相等符號(hào)相反的數(shù),0的偶次方根是0,負(fù)數(shù)沒有偶次方根。(2)方根的性質(zhì):①②當(dāng)是奇數(shù)時(shí),;當(dāng)是偶數(shù)時(shí),(3)分?jǐn)?shù)指數(shù)冪的意義:,(4)實(shí)數(shù)指數(shù)冪的運(yùn)算性質(zhì):
2025-07-03 16:41
【摘要】對(duì)數(shù)函數(shù)的圖像與性質(zhì)知識(shí)點(diǎn)與習(xí)題一、知識(shí)回顧:1、指數(shù)函數(shù)與對(duì)數(shù)函數(shù)的圖象與性質(zhì)2、指數(shù)函數(shù)與對(duì)數(shù)函數(shù)互為反函數(shù),其圖象關(guān)于直線對(duì)稱二、例題與習(xí)題__;2.已知函數(shù)3.,則,則,則的取值范圍是()(A)(B
【摘要】指數(shù)函數(shù)和對(duì)數(shù)函數(shù)·對(duì)數(shù)函數(shù)·例題[]解A
2024-11-19 08:38
【摘要】對(duì)數(shù)函數(shù)知識(shí)點(diǎn)及典型例題講解1.對(duì)數(shù):(1)定義:如果,那么稱為,記作,其中稱為對(duì)數(shù)的底,N稱為真數(shù).①以10為底的對(duì)數(shù)稱為常用對(duì)數(shù),記作___________.②以無(wú)理數(shù)為底的對(duì)數(shù)稱為自然對(duì)數(shù),記作_________.(2)基本性質(zhì):①真數(shù)N為(負(fù)數(shù)和零無(wú)對(duì)數(shù));②;③
【摘要】WORD格式整理版基本初等函數(shù)知識(shí)點(diǎn):(1)n次方根的定義:若,則稱x為a的n次方根,“”是方根的記號(hào)。在實(shí)數(shù)范圍內(nèi),正數(shù)的奇次方根是一個(gè)正數(shù),負(fù)數(shù)的奇次方根是一個(gè)負(fù)數(shù),0的奇次方根是0;正數(shù)的偶次方根是兩個(gè)絕對(duì)值相等符號(hào)相反的數(shù),0的偶次方根是0,負(fù)數(shù)沒有偶次方根。(2)方根的性質(zhì):①②當(dāng)是奇數(shù)時(shí),;當(dāng)是偶數(shù)
2025-07-03 17:32
【摘要】定義域?yàn)椋?,+∞).值域?yàn)镽過(guò)點(diǎn)(1,0)減函數(shù)增函數(shù)01y=logax(a0且a≠1)定義域?yàn)镽.值域?yàn)?0,+∞)性質(zhì)過(guò)點(diǎn)(0,1)減函數(shù)增函數(shù)圖象01y=ax(a
2024-10-25 19:13