錯(cuò)位相減法13年間的高考題

1、專項(xiàng)訓(xùn)練專項(xiàng)訓(xùn)練:錯(cuò)位相減法錯(cuò)位相減法目錄目錄1.(2003北京理16)............................................................................................................................22.(2005全國(guó)卷Ⅰ)...............................................

2、..............................................................................24.(2005湖北卷).................................................................................................................................2

3、5.(2006安徽卷).................................................................................................................................26.(2007山東理17)..................................................................

4、..........................................................27.2007全國(guó)1文21).........................................................................................................................28.(2007江西文21).............

5、...............................................................................................................29.(2007福建文21)...............................................................................................

6、.............................210.(2007安徽理21)..........................................................................................................................311.(2008全國(guó)Ⅰ19).......................................

7、....................................................................................312.(2008陜西20)..........................................................................................................................

8、....313.(2009全國(guó)卷Ⅰ理).......................................................................................................................314.(2009山東卷文)....................................................................

9、.......................................................315.(2009江西卷文)...........................................................................................................................316.(2010年全國(guó)寧夏卷17)..........

10、....................................................................................................317.(2011遼寧理17).........................................................................................................

11、.................418.(2012天津理)...............................................................................................................................419.2012年江西省理..................................................

12、........................................................................420.2012年江西省文..........................................................................................................................421.2012年浙江省文

13、..........................................................................................................................422.(2013山東數(shù)學(xué)理)...................................................................................

14、....................................423.(2014四川)...................................................................................................................................424.(2014江西理17)..........................

15、................................................................................................525.(2014安徽卷文18)............................................................................................................

16、..........526.(2014全國(guó)1文17)......................................................................................................................527.(2014四川文19).............................................................

17、.............................................................528.(2015山東理18)..........................................................................................................................529.(2015天津理18).......

18、...................................................................................................................530.(2015湖北理18)..........................................................................................

19、...............................531.(2015山東文19)..........................................................................................................................532.(2015天津文18).....................................

20、.....................................................................................633.(2015浙江文17)........................................................................................................................

21、..6專項(xiàng)訓(xùn)練錯(cuò)位相減法答案........................................................................................................7(1)求的通項(xiàng)公式nanb(2)求數(shù)列的前項(xiàng)和.nnab??????nnS8.(2007江西文21)設(shè)為等比數(shù)列.??na11a?23a?(1)求最小的自然數(shù)使n2007na≥(2)求和:.212321

22、232nnnTaaaa??????9.(2007福建文21)數(shù)列??na的前n項(xiàng)和為nS11a?12()nnaSn???N.(1)求數(shù)列??na的通項(xiàng)na(2)求數(shù)列??nna的前n項(xiàng)和nT.10.(2007安徽理21)某國(guó)采用養(yǎng)老儲(chǔ)備金制度.公民在就業(yè)的一年就交納養(yǎng)老儲(chǔ)備金數(shù)目為以后每年1a交納的數(shù)目均比上一年增加因此歷年所交納的儲(chǔ)務(wù)金數(shù)目是一個(gè)??0dd?12aa?公差為的等差數(shù)列與此同時(shí)國(guó)家給予優(yōu)惠的計(jì)息政策不僅采用固定利率而且計(jì)

23、算d復(fù)利.這就是說(shuō)如果固定年利率為那么在年末一年所交納的儲(chǔ)備金就變??0rr?n為二年所交納的儲(chǔ)備金就變?yōu)橐员硎镜侥昴┧??111nar????221nar???nTn累計(jì)的儲(chǔ)備金總額.(1)寫(xiě)出與的遞推關(guān)系式nT1(2)nTn??(2)求證:其中是一個(gè)等比數(shù)列是一個(gè)等差數(shù)列.nnnTAB????nA??nB11.(2008全國(guó)Ⅰ19)在數(shù)列中.??na11a?122nnnaa???(1)設(shè).證明:數(shù)列是等差數(shù)列12nnnab????n