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Site Map for Current Domain >> Classrooms Self-study Materials Dynamic Geometry Expanded Sub-folders at Current Level Self-study Materials Algebra Courses Geometry Courses Trigonometry Courses Dynamic Geometry Recommended Articles	>> Classrooms >> Dynamic Geometry 【Full screen mode】 Vectors (I): the basics Time:2008/3/29 23:2:31,Hit rate:0 Basics of Vectors 1.        Sum of Vectors This is called the parallelogram law of vector addition. 2.        Difference of Vectors For vector subtraction, say, b minus a , the vector should go from A to B. i.e. b – a = vector from A to B. b a 3.        Unit Vector The length of a unit vector is always equal to 1. Search Engines (Local / Wholesite): Look for: in Classrooms by topicby content Look for: in the whole website.

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