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二项式定理是高考内容之一,多以小题形式出现,要求考生熟练掌握展开式的通项公式, 对于指数为正整数的不等式,利用二项式定理解题常能奏效．
The binomial theorem is one of the contents of college entrance examination. It appears mostly in the form of small questions and requires candidates to master the general formula of the expansion. For the inequality with exponent of positive integer, the use of the binomial formulation can often work.