2020版高考數(shù)學(xué)一輪總復(fù)習(xí) 第六章 數(shù)列 第1節(jié) 數(shù)列的概念及簡(jiǎn)單表示法課件.ppt

,第1節(jié)數(shù)列的概念及簡(jiǎn)單表示法,01,02,03,04,考點(diǎn)三,考點(diǎn)一,考點(diǎn)二,例1訓(xùn)練1,由數(shù)列的前幾項(xiàng)求數(shù)列的通項(xiàng),由Sn與an的關(guān)系求an(易錯(cuò)警示),由數(shù)列的遞推關(guān)系求通項(xiàng)公式,診斷自測(cè),例2訓(xùn)練2,例3訓(xùn)練3,診斷自測(cè),考點(diǎn)一由數(shù)列的前幾項(xiàng)求數(shù)列的通項(xiàng),考點(diǎn)一由數(shù)列的前幾項(xiàng)求數(shù)列的通項(xiàng),各項(xiàng)統(tǒng)一格式，以便尋找規(guī)律，得出項(xiàng)與項(xiàng)序號(hào)之間的關(guān)系,考點(diǎn)一由數(shù)列的前幾項(xiàng)求數(shù)列的通項(xiàng),考點(diǎn)一由數(shù)列的前幾項(xiàng)求數(shù)列的通項(xiàng),由本題結(jié)論揭示了已知數(shù)列的前四項(xiàng)，歸納出的通項(xiàng)公式未必唯一,考點(diǎn)一由數(shù)列的前幾項(xiàng)求數(shù)列的通項(xiàng),考點(diǎn)二由Sn與an的關(guān)系求an(易錯(cuò)警示),注意：anSnSn1的條件是n2所以此類題都要討論n=1時(shí)的an,考點(diǎn)二由Sn與an的關(guān)系求an(易錯(cuò)警示),考點(diǎn)二由Sn與an的關(guān)系求an(易錯(cuò)警示),考點(diǎn)二由Sn與an的關(guān)系求an(易錯(cuò)警示),考點(diǎn)三由數(shù)列的遞推關(guān)系求通項(xiàng)公式,考點(diǎn)三由數(shù)列的遞推關(guān)系求通項(xiàng)公式,考點(diǎn)三由數(shù)列的遞推關(guān)系求通項(xiàng)公式,考點(diǎn)三由數(shù)列的遞推關(guān)系求通項(xiàng)公式,考點(diǎn)三由數(shù)列的遞推關(guān)系求通項(xiàng)公式,