常用gmat数学公式总结.docx

常用gmat数学公式总结

第一篇：常用gmat数学公式总结常用gmat数学公式总结以下为大家总结了gmat考试中gmat数学公式，当然，我们总结的不够全面，只是一些比较常用的gmat数学公式，同时也适用于GRE考试，希望能够帮助大家备考。(a+b)(a-b)=a²-b²(a+b)²=a²+2ab+b²(a-b)²=a²-2ab+b²(a+b)³=a³+3a²b+3ab²+b³(a-b)³=a³-3a²b+3ab²-b³一元二次方程ax²+bx+c=0的解x₁,₂=(-b±√b²-4ac)/2a利率Rate。时间Time*SimpleInterest:利息Interest=本金Principal*CompoundInterest:A=(1+R)n;A为本利和，P为本金,R为利率,n为期数。TimeRateofDiscount*Distance=Speed*Discount=Cost*PythagoreanTheorem(勾股定理):直角三角形(righttriangle)两直角边(legs)的平方和等于斜边(hypotenuse)的平方。*多变形的内角和：(n-2)×180°，总对角线数为n(n-3)/2条，从每一个顶点引出的对角线数为(n-3)条;式中：n为多边形的边数*平面直角坐标系中，A(x1,y1)和B(x2,y2)是任意两点，C(x,y)是线段AB的中点，则x=(x1+x2)/2，y=(y1+y2)/2,线段AB两端点间的距离=*平面图形的周长和面积：PerimeterAreaTriangle三边之和(底×高)/2Square边长×4边长的平方Rectangle(长+宽)×2长×宽Parallelogram(长+宽)×2底×高Trapezoid四边之和(上底+下底)×高/2Rhombus边长×4两条对角线之积的1/2Circle2πr=πdπr2*立体图形的表面积和体积：VolumeSurfaceAreaRectangularPrism长×宽×高2(长×宽+长×高+宽×高)Cube棱长的立方6×棱长×棱长RightCircularCylinderπr2h2πrh(侧)+2πr2(底)Sphere4πr3/34πr2RightCircularConeπr2h/3lr/2(l为母线)第二篇：LATEX数学公式总结SUNLEYFORWARD数学公式小结请运行以下程序：documentclass[11pt]{article}usepackage{CJK}usepackage{indentfirst}usepackage{latexsym}usepackage{bm}usepackage{amsmath,amssymb,amsfonts}usepackage{wasysym}usepackage{xcolor}usepackage{cases}%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%重定义字体、字号命令%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%newcommand{song}{CJKfamily{song}}%宋体(Windows自带simsun.ttf)newcommand{fs}{CJKfamily{fs}}%仿宋体(Windows自带simfs.ttf)newcommand{kai}{CJKfamily{kai}}%楷体(Windows自带simkai.ttf)newcommand{hei}{CJKfamily{hei}}%黑体(Windows自带simhei.ttf)newcommand{li}{CJKfamily{li}}%隶书(Windows自带simli.ttf)newcommand{you}{CJKfamily{you}}%幼圆(Windows自带simyou.ttf)newcommand{chuhao}{fontsize{42pt}{baselineskip}selectfont}%字号设置newcommand{xiaochuhao}{fontsize{36pt}{baselineskip}selectfont}%字号设置newcommand{yichu}{fontsize{32pt}{baselineskip}selectfont}%字号设置newcommand{yihao}{fontsize{28pt}{baselineskip}selectfont}%字号设置newcommand{erhao}{fontsize{21pt}{baselineskip}selectfo