新GRE数学要点:Polynomials

会计考友

Polynomials 　　Any expression with one or more terms is called polynomial.
  L" x5 a& H! d8 E6 r& ]% r　　Example:
　　3x+2,4x2-x+2,and 4x+3xy+y2are all polynomials
; E4 w7 b# n- Q　　(3x+5/(2x+y))and sin(3x+2) are not polynomials.
　　Remember:
　　Order of a polynomial is the highest power of any variable.
　　The highest power in an n-th order polynomial is n.
　　Both monomials and binomials are polynomials of order 1 and 2, respectively.
- `+ d: a* c/ d0 P6 O5 y; G　　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。