`a*((b times c) times (a+(b times c))` is equal to

If a, b, c, d lie in the same plane then (a times b) times (c times d) is equal to

If vec a, vec b and vec c are non-coplanar vector and vec a times vec c is perpendicular to vec a times(vec b times vec c) ,then the value of [vec a times(vec b times vec c)]times vec c is equal to :

Evaluate : [ ( a times b ) times ( b times c ) ( b times c ) times ( c times a ) ( c times a ) times ( a times b ) ]

If a, b and c are any three vectors, then a times (b times c)=(a times b) times c if and only if

Evaluate : ( b times c ) times ( c times a )

Evaluate : a times b times a times b times c times c times c

Evaluate : ( b times c ) times ( c times a ) =