新GRE数学应试技巧:Term

2011-12-02 08:15:04
 2011新gre考试实施以来,不仅对写作部分茫然不知所措,就连我们所擅长的数学也甚是担忧,相信这其中的原因还是由于考生在新gre数学复习时没有把基础打牢。如果新版gre数学基本考点都没有复习到,如何能拿到分数呢?所以说,想要新版gre数学考好,复习的时候一定要把基本概念和重要考点都弄扎实。

  今天针对新版gre数学复习,小编给大家整理的是关于Term的相关内容,这些概念在考试中一定会考到的。希望考生能再接再厉,取得一个好成绩,突破新版gre数学难的困境。

  Term

  A product of coefficients and any number of variables with exponents is called a term. Terms that have the same variables with identical exponents for each variables are called like terms.

  Example:

  3x,axy,4x2yz are terms. 3x+2 is not term: it is a sum of two terms.

  3x2y and 7x2y are like terms since both have the same variables x and y with identical exponents: 2 for x and 1 for y.

  Remember:

  There cannot be any addition or subtraction in a single term.

  Since multiplication is associative, rearrangements of variables does not change a term:3xy is same as 3yx.

  3x2y and 7xyx are like terms.

  由于美国数学基础教育的难度增加导致数学考试越来越难,但新gre数学复习考点都是高中时候学到的知识点,考生不要过于紧张,把基本概念弄明白,再记住一些新版gre数学必备的词汇,那么相信新版gre数学应该没有问题。

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