设平面向量a1.a2.a3的和a1+a2+a3=0若b1.b2.b3满足绝对值bi=绝对值2ai,且ai顺时针旋转30度后与bi同向其中i=1.2.3则b1b2b3关系式为
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![设平面向量a1.a2.a3的和a1+a2+a3=0若b1.b2.b3满足绝对值bi=绝对值2ai,且ai顺时针旋转30度后与bi同向其中i=1.2.3则b1b2b3关系式为](/uploads/image/z/12521395-19-5.jpg?t=%E8%AE%BE%E5%B9%B3%E9%9D%A2%E5%90%91%E9%87%8Fa1.a2.a3%E7%9A%84%E5%92%8Ca1%2Ba2%2Ba3%3D0%E8%8B%A5b1.b2.b3%E6%BB%A1%E8%B6%B3%E7%BB%9D%E5%AF%B9%E5%80%BCbi%3D%E7%BB%9D%E5%AF%B9%E5%80%BC2ai%2C%E4%B8%94ai%E9%A1%BA%E6%97%B6%E9%92%88%E6%97%8B%E8%BD%AC30%E5%BA%A6%E5%90%8E%E4%B8%8Ebi%E5%90%8C%E5%90%91%E5%85%B6%E4%B8%ADi%3D1.2.3%E5%88%99b1b2b3%E5%85%B3%E7%B3%BB%E5%BC%8F%E4%B8%BA)
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