GRE数学常用公式表达
<p> 1.<span word="is">is</span> <span word="equal">equal</span> <span word="to">to</span>; <span word="is">is</span> <span word="the">the</span> <span word="same">same</span> <span word="as">as</span> =</p><p> <span word="the">the</span> <span word="result">result</span> <span word="is">is</span>; <span word="yields">yields</span>; <span word="gives">gives</span></p><p> 2.<span word="the">the</span> <span word="sum">sum</span> <span word="of">of</span> <span word="x">x</span> <span word="and">and</span> <span word="y">y</span>; <span word="the">the</span> <span word="total">total</span> <span word="of">of</span> <span word="x">x</span> <span word="and">and</span> <span word="y">y</span>;</p><p> <span word="x">x</span> <span word="added">added</span> <span word="to">to</span> <span word="y">y</span>; <span word="x">x</span> <span word="increased">increased</span> <span word="by">by</span> <span word="y">y</span>; <span word="x">x</span>+<span word="y">y</span></p><p> <span word="x">x</span> <span word="more">more</span> <span word="then">then</span> <span word="y">y</span>; <span word="x">x</span> <span word="greater">greater</span> <span word="than">than</span> <span word="y">y</span></p><p> 3.<span word="x">x</span> <span word="minus">minus</span> <span word="y">y</span>; <span word="x">x</span> <span word="less">less</span> <span word="y">y</span>;</p><p> <span word="the">the</span> <span word="difference">difference</span> <span word="of">of</span> <span word="x">x</span> <span word="and">and</span> <span word="y">y</span>; <span word="x">x</span> <span word="take">take</span> <span word="away">away</span> <span word="y">y</span>;</p><p> <span word="from">from</span> <span word="x">x</span> <span word="subtract">subtract</span> <span word="y">y</span> <span word="x">x</span> <span word="decreased">decreased</span> <span word="by">by</span> <span word="y">y</span>; <span word="x">x</span>-<span word="y">y</span></p><p> <span word="x">x</span> <span word="diminished">diminished</span> <span word="by">by</span> <span word="y">y</span>; <span word="y">y</span> <span word="is">is</span> <span word="subtracted">subtracted</span> <span word="from">from</span> <span word="x">x</span>;</p><p> <span word="y">y</span> <span word="less">less</span> <span word="than">than</span> <span word="x">x</span></p><p> 4. <span word="x">x</span> <span word="multiplied">multiplied</span> <span word="by">by</span> <span word="y">y</span>;</p><p> <span word="the">the</span> <span word="product">product</span> <span word="of">of</span> <span word="x">x</span> <span word="and">and</span> <span word="y">y</span>; <span word="xy">xy</span></p><p> 5. <span word="divided">divided</span> <span word="by">by</span> <span word="y">y</span>;</p><p> <span word="the">the</span> <span word="quotient">quotient</span> <span word="of">of</span> <span word="x">x</span> <span word="and">and</span> <span word="y">y</span>; <span word="x">x</span> <span word="y">y</span>，</p><p> <span word="y">y</span> <span word="divided">divided</span> <span word="into">into</span> <span word="x">x</span></p><p> 6. <span word="A">A</span> <span word="and">and</span> <span word="B">B</span> <span word="are">are</span> <span word="factors">factors</span> <span word="of">of</span> <span word="C">C</span>;</p><p> <span word="A">A</span> <span word="and">and</span> <span word="B">B</span> <span word="are">are</span> <span word="divisors">divisors</span> <span word="of">of</span> <span word="C">C</span>;</p><p> <span word="C">C</span> <span word="is">is</span> <span word="divisible">divisible</span> <span word="by">by</span> <span word="A">A</span> <span word="and">and</span> <span word="by">by</span> <span word="B">B</span>; <span word="A">A</span> <span word="B">B</span>=<span word="C">C</span></p><p> <span word="C">C</span> <span word="is">is</span> <span word="a">a</span> <span word="multiple">multiple</span> <span word="of">of</span> <span word="A">A</span> <span word="and">and</span> <span word="of">of</span> <span word="B">B</span>;</p><p> <span word="A">A</span> <span word="divides">divides</span> <span word="C">C</span> <span word="and">and</span> <span word="B">B</span> <span word="divides">divides</span> <span word="C">C</span>;</p><p> 7. <span word="the">the</span> <span word="ratio">ratio</span> <span word="of">of</span> <span word="a">a</span> <span word="to">to</span> <span word="b">b</span> <span word="a">a</span>：<span word="b">b</span>，</p><p> 8. <span word="reciprocal">reciprocal</span> <span word="of">of</span> <span word="x">x</span></p><p> 9. <span word="x">x</span> <span word="times">times</span> <span word="as">as</span> <span word="many">many</span> <span word="z">z</span> <span word="as">as</span> <span word="y">y</span>; <span word="z">z</span>=<span word="x">x</span> <span word="y">y</span></p><p> 10. <span word="a">a</span> <span word="squared">squared</span>;</p><p> <span word="a">a</span> <span word="to">to</span> <span word="the">the</span> <span word="second">second</span> <span word="power">power</span> <span word="a">a</span>2</p><p> 11. <span word="a">a</span> <span word="cubed">cubed</span>; <span word="a">a</span>3</p><p> <span word="a">a</span> <span word="to">to</span> <span word="the">the</span> <span word="third">third</span> <span word="power">power</span></p>
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