理解對(duì)數(shù)函數(shù)的概念，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)，明白對(duì)數(shù)函數(shù)與指數(shù)函數(shù)互為反函數(shù).

近年對(duì)指數(shù)函數(shù)、對(duì)數(shù)函數(shù)、冪函數(shù)的考查，大多以基本函數(shù)的性質(zhì)為依托，結(jié)合運(yùn)算推理，能運(yùn)用它們的性質(zhì)解決具體問(wèn)題. 為此，我們要熟練掌握指數(shù)、對(duì)數(shù)運(yùn)算法則，明確算理，能對(duì)常見的指數(shù)型函數(shù)、對(duì)數(shù)型函數(shù)進(jìn)行變形處理.