5、设a=(m,n)b=(p,q)定义向量间运算“*”为a*b=(mp-nq,mq+np).1、计算|a|、|b| 及 |a*b|2.、若np≠mq,是比较/a·b/²与/a﹡b/²的大小
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![5、设a=(m,n)b=(p,q)定义向量间运算“*”为a*b=(mp-nq,mq+np).1、计算|a|、|b| 及 |a*b|2.、若np≠mq,是比较/a·b/²与/a﹡b/²的大小](/uploads/image/z/3620306-2-6.jpg?t=5%E3%80%81%E8%AE%BEa%3D%28m%2Cn%29%26%2357351%3Bb%3D%28p%2Cq%29%26%2357351%3B%E5%AE%9A%E4%B9%89%E5%90%91%E9%87%8F%E9%97%B4%E8%BF%90%E7%AE%97%E2%80%9C%2A%E2%80%9D%E4%B8%BA%26%2357353%3Ba%2Ab%3D%28mp-nq%26%2357351%3B%2Cmq%2Bnp%29.1%E3%80%81%E8%AE%A1%E7%AE%97%7Ca%7C%E3%80%81%7Cb%7C+%E5%8F%8A+%7Ca%2Ab%7C%26%2357354%3B2.%E3%80%81%E8%8B%A5np%E2%89%A0mq%2C%E6%98%AF%E6%AF%94%E8%BE%83%2Fa%C2%B7b%2F%26%23178%3B%E4%B8%8E%2Fa%EF%B9%A1b%2F%26%23178%3B%E7%9A%84%E5%A4%A7%E5%B0%8F)
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5、设a=(m,n)b=(p,q)定义向量间运算“*”为a*b=(mp-nq,mq+np).1、计算|a|、|b| 及 |a*b|2.、若np≠mq,是比较/a·b/²与/a﹡b/²的大小
5、设a=(m,n)b=(p,q)定义向量间运算“*”为a*b=(mp-nq,mq+np).
1、计算|a|、|b| 及 |a*b|
2.、若np≠mq,是比较/a·b/²与/a﹡b/²的大小
5、设a=(m,n)b=(p,q)定义向量间运算“*”为a*b=(mp-nq,mq+np).1、计算|a|、|b| 及 |a*b|2.、若np≠mq,是比较/a·b/²与/a﹡b/²的大小