新GRE数学要点:Polynomials

会计考友

Polynomials 　　Any expression with one or more terms is called polynomial.
　　Example:
# D6 ^  s, G% X, U3 r$ [6 p* t& B0 K　　3x+2,4x2-x+2,and 4x+3xy+y2are all polynomials
, t3 _5 _2 D3 O2 X　　(3x+5/(2x+y))and sin(3x+2) are not polynomials.
　　Remember:
) j& P/ m' p% e) T. G& r0 v　　Order of a polynomial is the highest power of any variable.
　　The highest power in an n-th order polynomial is n.
6 [1 a. \/ R# G, R4 ]) j　　Both monomials and binomials are polynomials of order 1 and 2, respectively.
　　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。