3.11*Vector Triple Product*
is perpendicular to both
and
, so lies in the plane of
and
. Basic result obtained easily, is,
NB. The order and the brackets must not be
changed , if we do this will alter the result. If
is normal to the plane of
and
then
(Why?)
Example
3.13:
-
Find
and
given
,
,
.
Solution:
-