GMAT数学常用公式
<p> (<span word="a">a</span>+<span word="b">b</span>)(<span word="a">a</span>-<span word="b">b</span>)=<span word="a">a</span>2-<span word="b">b</span>2 (<span word="a">a</span>+<span word="b">b</span>)2=<span word="a">a</span>2+2<span word="ab">ab</span>+<span word="b">b</span>2 (<span word="a">a</span>-<span word="b">b</span>)2=<span word="a">a</span>2-2<span word="ab">ab</span>+<span word="b">b</span>2 (<span word="a">a</span>+<span word="b">b</span>)3=<span word="a">a</span>3+3<span word="a">a</span>2<span word="b">b</span>+3<span word="ab">ab</span>2+<span word="b">b</span>3 (<span word="a">a</span>-<span word="b">b</span>)3=<span word="a">a</span>3-3<span word="a">a</span>2<span word="b">b</span>+3<span word="ab">ab</span>2-<span word="b">b</span>3 一元二次方程<span word="ax">ax</span>2+<span word="bx">bx</span>+<span word="c">c</span>=0的解<span word="x">x</span>?，?=(-<span word="bb">bb</span>2-4<span word="ac">ac</span>)/2<span word="a">a</span> *<span word="Simple">Simple</span> <span word="Interest">Interest</span>：利息<span word="Interest">Interest</span>=本金<span word="Principal">Principal</span>?时间<span word="Time">Time</span>?利率<span word="Rate">Rate</span>。 *<span word="Compound">Compound</span> <span word="Interest">Interest</span>:<span word="A">A</span>=(1+<span word="R">R</span>)<span word="n">n</span>;<span word="A">A</span>为本利和，<span word="P">P</span>为本金，<span word="R">R</span>为利率，<span word="n">n</span>为期数。 *<span word="Discount">Discount</span>=<span word="Cost">Cost</span>?<span word="Rate">Rate</span> <span word="of">of</span> <span word="Discount">Discount</span> *<span word="Distance">Distance</span>=<span word="Speed">Speed</span>?<span word="Time">Time</span> *<span word="Pythagorean">Pythagorean</span> <span word="Theorem">Theorem</span>(勾股定理)：直角三角形(<span word="right">right</span> <span word="triangle">triangle</span>)两直角边(<span word="legs">legs</span>)的平方和等于斜边 (<span word="hypotenuse">hypotenuse</span>)的平方。 *多变形的内角和：(<span word="n">n</span>-2)180，总对角线数为<span word="n">n</span>(<span word="n">n</span>-3)/2条，从每一个顶点引出的对角线数为(<span word="n">n</span>-3)条;式中：<span word="n">n</span>为多边形的边数 *平面直角坐标系中，<span word="A">A</span>(<span word="x">x</span>1，<span word="y">y</span>1)和<span word="B">B</span>(<span word="x">x</span>2，<span word="y">y</span>2)是任意两点，<span word="C">C</span>(<span word="x">x</span>，<span word="y">y</span>)是线段<span word="AB">AB</span>的中点，则<span word="x">x</span>=(<span word="x">x</span>1+<span word="x">x</span>2)/2，，<span word="y">y</span>=(<span word="y">y</span>1+<span word="y">y</span>2)/2，线段<span word="AB">AB</span>两端点间的距离= *平面图形的周长和面积： <span word="Perimeter">Perimeter</span> <span word="Area">Area</span> <span word="Triangle">Triangle</span> 三边之和 (底高)/2 <span word="Square">Square</span> 边长4 边长的平方 <span word="Rectangle">Rectangle</span> (长+宽)2 长宽 <span word="Parallelogram">Parallelogram</span> (长+宽)2 底高 <span word="Trapezoid">Trapezoid</span> 四边之和 (上底+下底)高/2 <span word="Rhombus">Rhombus</span> 边长4 两条对角线之积的1/2 <span word="Circle">Circle</span> 2<span word="d">d</span> <span word="r">r</span>2 *立体图形的表面积和体积： <span word="Volume">Volume</span> <span word="Surface">Surface</span> <span word="Area">Area</span> <span word="Rectangular">Rectangular</span> <span word="Prism">Prism</span> 长宽高 2(长宽+长高+宽高) <span word="Cube">Cube</span> 棱长的立方 6棱长棱长 <span word="Right">Right</span> <span word="Circular">Circular</span> <span word="Cylinder">Cylinder</span> <span word="r">r</span>2<span word="h">h</span> 2<span word="r">r</span> <span word="h">h</span>(侧)+2<span word="r">r</span>2(底) <span word="Sphere">Sphere</span> 4<span word="r">r</span>3/3 4<span word="r">r</span>2 <span word="Right">Right</span> <span word="Circular">Circular</span> <span word="Cone">Cone</span> <span word="r">r</span>2<span word="h">h</span>/3 <span word="lr">lr</span>/2 (<span word="l">l</span>为母线) 以上就是<span word="GMAT">GMAT</span>数学常用公式汇总的详细内容，考生可针对文中介绍的方法进行有针对性的备考。最后，预祝大家在<span word="GMAT">GMAT</span>考试中取得好成绩!</p>
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