设a=2i-3j+k,b=i-j+3k,c=i-2j,求: (1)(a×b)×c; (2)(a×b)×c; (3)a×(b×c); (4)(a×b)c(a×c)b.

admin2011-11-19  22

问题 设a=2i-3j+k,b=i-j+3k,c=i-2j,求:
(1)(a×b)×c;    (2)(a×b)×c;    (3)a×(b×c);    (4)(a×b)c(a×c)b.

选项

答案[*]

解析
转载请注明原文地址:https://kaotiyun.com/show/UkF4777K
0

最新回复(0)