IF `bara barb and barc` are three unit vectors such that `bara times (barb times barc)=1/2 barb` Find the angles which `bara` makes with `barb and barc`.

lf bara,barb,barc are three unit-vectors such that 3bara + 4barb + 5barc = bar0 , then

IF bara,barb,barc and bard are any four vectors then (bara times barb) times (barc times bard) is a vector

If bara,barb,barc are non -coplanar unit vectors such that bara times (barb times barc)=((barb+barc))/sqrt2, barb and barc are non parallel then prove that angle between bara and barb is 3pi//4

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

Let bara barb barc be three unit vectors such that |bara+barb+barc|=1 and bara bot barb makes angles a and b with bara and barb respectively then cosa+cosb is equal to

Let bara,barb and barc be non-zero vectors such that (bara times barb)times barc=1/3|barb||barc|bara . If theta is the obtuse angle between the vectors barb and barc then sin theta equals

lf bara· (barb xx barc) = 3 , then

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

If bara,barb,barc are three coplanar vectors, then [bara+barb" "barb+barc" "barc+bara]=