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数列通项公式是数列中重要内容,在高考中是一类常考常新的题型,一般大都以压轴题的形式出现在试卷后几题中,纵观近几年的高考试题大多以递推关系an+1=pan+f(n)(p≠0的常数)或an+2=pan+1+ran等形式给出,或者经过适当变形后可转化为以上两种形式。而考生看到此类问题往往一筹莫展,很难找到解决问题的切入点,导致解题搁浅,引发思维受阻。究竟如何启发引导考生找出解决此类问题的
The number of general formula is an important part of the series, in the college entrance examination is a type of often test the new type of question, the general most of the questions in the form of questions in the papers after a few questions, take a look at most of the entrance exam questions in recent years to pass The relationship an + 1 = pan + f (n) (a constant of p ≠ 0) or an + 2 = pan + 1 + ran is given or it can be converted into the above two forms after proper deformation. The candidates see such issues are often helpless, it is difficult to find the entry point to solve the problem, leading to solution problems stranded, triggering blocked thinking. How to inspire and guide candidates to find out to solve such problems