3.1.5空间向量运算的坐标表示1一、向量的直角坐标运算112233(,,)ababab112233(,,)ababab123(,,),()aaaR112233ababab112233,,()abababR112222///ababab1122330ababab;ab;ab;a;ab//;.ab;ab则设),(,),,,(321321bbbbaaaa2已知=(3,-2,4),=(-2,5,-3),则__________ab__________ba________________5b3a__________ab____2b)b)(a(2...