id stringlengths 1 6 | url stringlengths 16 1.82k | content stringlengths 37 9.64M |
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0 | https://www.slideshare.net/slideshow/5207871-2/250042359 | 5207871 (2) | PPT
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1 | https://math.fudan.edu.cn/_upload/article/files/8a/c7/b6bc60b64933acee041a351adda9/d0bb8522-a61d-4d6c-ab50-0051ba33a403.pdf | 教 案 平面和直线 教学内容 平面和直线是几何学中最基本的研究对象，是一些向量空间和几何空间中某 些对象的最基本原型。 由于曲线在局部可以用它的切线来近似， 曲面在局部可以 用它的切平面来近似，所以平面和直线也是几何和分析中“以直代曲”的最基本 元素。 因此学习空间解析几何中处理平面与直线的方法非常重要， 而且是必须要 掌握的数学工具。在本节中主要讲解以下几方面的内容： （1）平面和直线的代数表示，即它们的方程的形式如何？以及如何用向量 的运算方法来建立这些方程； （2）平面与平面，平面与直线、直线与直线，以及点与这些对象的位置关 系，如距离、夹角等，以及如何利用代数方法来处理。 教学思路和要求 （1）首先讲解平面的方程、直线的方程... |
2 | https://www.scribd.com/document/704706131/Environmental-Engineering-by-Peavyrowe-Pdfdrive | Environmental Engineering by Peavyrowe Pdfdrive | PDF | Sewage Treatment | Secondary Sector Of The Economy
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3 | https://www.youtube.com/watch?v=rBmLMUVNlEo | Cross Price Affect and Effect of Substitute Goods | Microeconomics Consumer Equilibrium and Demand
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Class 12 Microeconomics-Consumer Equilibrium and Demand by Parul Madan
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in this video we will understand the cross ... |
4 | https://www.reddit.com/r/AskPhysics/comments/1h3agfa/is_earths_rotation_slowing_down_gradually/ | Is earths rotation slowing down gradually? : r/AskPhysics
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5 | https://www.longdom.org/articles/qpochhammer-symbol-a-versatile-mathematical-tool-with-farreaching-applications-101786.html | q-Pochhammer Symbol: A Versatile Mathematical Tool with Far-Reach
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6 | https://www.nature.com/articles/s41415-022-4280-0 | Osteoradionecrosis of the jaw: a window of opportunity | British Dental Journal
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7 | https://artofproblemsolving.com/wiki/index.php/Summation?srsltid=AfmBOooZZZ88EH_7Pc8GcypHBKSe-SCFLipvLp5mKV1_15Cum7L3Lk29 | Art of Problem Solving
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8 | https://math.stackexchange.com/questions/340744/what-do-the-symbols-d-dx-and-dy-dx-mean | Stack Exchange Network
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9 | https://famous-trials.com/animalrights/2595-the-case-against-animal-personhood | Published Time: Sun, 07 Sep 2025 15:52:37 GMT
The Case AGAINST Animal Personhood
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10 | https://www.gauthmath.com/solution/1803684607673350/What-is-the-probability-of-rolling-an-even-number-on-a-fair-six-sided-die-A-1-2- | Question
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Respuesta: D. No, ya que sólo podemos elegir entre las condiciones disponibles y el rango de 1 a 5 no es una de ellas.
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11 | https://math.stackexchange.com/questions/4824606/circles-formed-by-points-of-common-tangency-of-two-circles | geometry - Circles formed by points of common tangency of two circles - Mathematics Stack Exchange
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