若5/3a=2b/3(a.b不为0),那axb=()

问题描述:

若5/3a=2b/3(a.b不为0),那axb=()

若5/3a=2b/3(a.b不为0),那axb=(5/2)
5/3a=2b/3
所以,a×b=(5/3)×(3/2)=5/2