1.3.2.1.1.1.3.1空间向量的坐标运算(求模)
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Earned Point(s): 0 of 0, (0) 1.3.2.1.1.1.3.1.003 已知向量a = (-3,2,5),则|a|( ) 1.3.2.1.1.1.3.1.004 已知向量b = (1,5,-1),则|b|( ) 1.3.2.1.1.1.3.1.005 已知向量a = (2,-3,1),则|a|( ) 1.3.2.1.1.1.3.1.006 已知向量b = (2,0,3),则|b|( )
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