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《 解析几何 》

《 解析几何 》. §2 向量的加法. 定理 1.2.1 如果把两个矢量 为邻边组成一个平行四边形 OACB ,那么对角线矢量. B. O. A. 这种求两个矢量和的方法叫 三角形法则. B. C. O. A. 这种求两个矢量和的方法叫做 平行四边形法则. 定理 1.2.2 矢量的加法满足下面的运算规律:. ( 1 )交换律:. ( 2 )结合律:. ( 3 ). A 4. A 1. A 3. A 2. A n-1. O. A n. 这种求和的方法叫做 多边形法则. 矢量减法. 不等式. C. A. B.

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《 解析几何 》

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  1. 《解析几何》 §2 向量的加法

  2. 定理1.2.1如果把两个矢量 为邻边组成一个平行四边形OACB,那么对角线矢量 B O A 这种求两个矢量和的方法叫三角形法则.

  3. B C O A 这种求两个矢量和的方法叫做平行四边形法则 定理1.2.2矢量的加法满足下面的运算规律: (1)交换律: (2)结合律: (3)

  4. A4 A1 A3 A2 An-1 O An 这种求和的方法叫做多边形法则

  5. 矢量减法

  6. 不等式

  7. C A B

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