I`ve been given a question on a problem sheet that is supposed to be "just for Fun"
The question is;
show that:
[tex]{\hat a}\times({\hat b}\times{\hat c})= {\hat b}({\hat a}.{\hat c})-{\hat c}({\hat a}.{\hat b})[/tex]
I`m not really sure where to start so any hints would be greatly appreciated.
The question is;
show that:
[tex]{\hat a}\times({\hat b}\times{\hat c})= {\hat b}({\hat a}.{\hat c})-{\hat c}({\hat a}.{\hat b})[/tex]
I`m not really sure where to start so any hints would be greatly appreciated.