If `bara` is a unit vector then `bara xx {bara xx (bara xx barb)}`

If bara and barb are unit vectors, then the vector ( bara + barb) xx ( bara xx barb) is parallel to the vector

Given that bara and barb are not mutually perpendicular. If barc and bard are two vectors such that barb xx barc = barb xx bard and bara.bard =0, then : bard=

If bara, barb, barc, bard are vectors such that bard is a unit vector, the projection of bara on bard is 2 and [bara barb barc] = 3 find the value of { ( a xx b) xx (bara xx barc)} .bard

If barb, barc are two unit vectors along the positive x, y axes, and bara is any vector, then (bara*barb)barb+(bara*barc)barc+(bara*(barb xx barc))/(|barb xx barc|^(2))(barb xx barc)=

Given that barc is in the plane of bara, barb and bard is not iri the plane of bara, barb then (baraxx barb) xx (barc xx bard) =

bara, barb, barc are three unit vectors, barb is not parallel to barc and baraxx (barb xx barc) = 1/2barb then (bara, barb) = .... , (bara, barc) =