`bara times (barb times barc) +barb times (barc times bara)+ barc times (bara times barb)` equals

Show that vectors bara times (barb times barc),barb times (barc times bara). barc times (bara times barb) are coplanar.

If vectors barb, bar c ,bard are not coplanar then prove that (bara times barb) times (barc times overlind)+(bara times barc) times (bard times barb)+(bara times bard) times (barb times barc) is parallel to bara .

IF bara times barb = barc and barb times barc=bara then

Let barlamda=bara times (barb +barc), barmu=barb times (barc+bara) and barv=barc times (bara+barb) , Then

If barc=bara times barb and barb=barc times bara then

If barc=bara times barb and barb=barc times bara then

If hatd is a unit vectors such that hatd=lamdabarb times barc+mubarc times bara+vbara times barb then |(hatd.bara)(barb times barc)+(bard.barb) (barc times bara)+(bard.barc) (bara times barb)| is equal to

If hatd is a unit vectors such that hatd=lamdabarb times barc+mubarc times bara+vbara times barb then |(hatd.bara)(barb times barc)+(bard.barb) (barc times bara)+(bard.barc) (bara times barc)| is equal to