二项式定理内容是高考考点之一.本文将近两年高考二项式定理试题归类解析,从中明晰考题形式与特点,克服复习的盲目性,增强自觉性,提高复习效率.一、求展开式的某一项求二项展开式的第r+1项,可用展开式的通项T_(r+1)=C_na~(n-r)b~r来解决.但要注意T_(r+1)的下角标数r+1比二项式系数C_n的上角标数r大1. Binomial theorem content is one of the college entrance examination sites.This article will nearly two years college entrance examinations Binomial theorem test classification analysis, from which the form and characteristics of the examination questions clear, to overcome the blindness of review, and enhance the consciousness and improve the efficiency of review. The first term r + 1 of a term of a binomial expansion can be solved by the general term of expansion T_ (r + 1) = C_na ~ (nr) b ~ r, but it should be noted that T_ (r + 1) The lower scale index r + 1 is 1 greater than the upper scale r of the binomial coefficient C_n.