关于向量的几道题.1,在正方形ABCD中,O为中心且向量OA=(-1,-1),试求向量OB,向量OC,向量OD的坐标2.已知向量a+向量b=(2,-8),向量a-向量b=(-8,16),求向量a和向量b3.已知向量a=(-2,3),向量b=(3,1),向量c=(10,-4),使
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![关于向量的几道题.1,在正方形ABCD中,O为中心且向量OA=(-1,-1),试求向量OB,向量OC,向量OD的坐标2.已知向量a+向量b=(2,-8),向量a-向量b=(-8,16),求向量a和向量b3.已知向量a=(-2,3),向量b=(3,1),向量c=(10,-4),使](/uploads/image/z/7828530-42-0.jpg?t=%E5%85%B3%E4%BA%8E%E5%90%91%E9%87%8F%E7%9A%84%E5%87%A0%E9%81%93%E9%A2%98.1%2C%E5%9C%A8%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E4%B8%AD%2CO%E4%B8%BA%E4%B8%AD%E5%BF%83%E4%B8%94%E5%90%91%E9%87%8FOA%3D%28-1%2C-1%29%2C%E8%AF%95%E6%B1%82%E5%90%91%E9%87%8FOB%2C%E5%90%91%E9%87%8FOC%2C%E5%90%91%E9%87%8FOD%E7%9A%84%E5%9D%90%E6%A0%872.%E5%B7%B2%E7%9F%A5%E5%90%91%E9%87%8Fa%2B%E5%90%91%E9%87%8Fb%3D%282%2C-8%29%2C%E5%90%91%E9%87%8Fa-%E5%90%91%E9%87%8Fb%3D%28-8%2C16%29%2C%E6%B1%82%E5%90%91%E9%87%8Fa%E5%92%8C%E5%90%91%E9%87%8Fb3.%E5%B7%B2%E7%9F%A5%E5%90%91%E9%87%8Fa%3D%28-2%2C3%29%2C%E5%90%91%E9%87%8Fb%3D%283%2C1%29%2C%E5%90%91%E9%87%8Fc%3D%2810%2C-4%29%2C%E4%BD%BF)
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