为了让您理清数列、推理与证明的复习要点,理顺数列中的一对姐妹花(等差数列与等比数列),成功穿越数列的应用,理透推理与证明的横向联系和纵向延伸,整合知识,提炼破解技巧,现走进经典例题,通过跟踪练习,让您复习数列、推理与证明so easy,轻松突破数列、推理与证明的思维瓶颈. In order to clarify the points of review of sequences, reasoning and proofs, to smooth out a pair of sisters in sequences (arithmetic and geometric sequences), the successful application of sequences, rationalization and proof of horizontal relations and vertical extension , Integrating knowledge, refining crack skills, now into the classic example, through tracking exercises, allowing you to review the sequence, reasoning and proof so easy, easily break through the sequence, reasoning and proof of thinking bottlenecks.