2013年新gre考试:gre数学新考点Term详解

2013-04-03 16:45:01 新gre考试gre数学

    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.

  有一部分考生认为新GRE数学具有一定的难度,这其中的原因是由于考生在复习时没有把新GRE数学的基础打牢。想要新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.

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