If two vectors `oversetrarra` and `oversetrarrb` are such that `|oversetrarra+oversetrarrb|=|oversetrarra-oversetrarrb|`, then what is the angle between `oversetrarra` and `oversetrarrb` ?

If oversetrarra=2oversetrarrj and oversetrarrc=-3oversetrarrj what is the angle between oversetrarra and oversetrarrc ?

What is the angle between oversettov and oversettow .

If theta is angle between oversetrarra and oversetrarrb and |oversetrarraxxoversetrarrb|=|oversetrarraoversetrarrb| Then theta equal to?

If (oversetrarra+oversetrarrb)(oversetrarra-oversetrarrb)=12 and |oversetrarra|=2|oversetrarrb| then what is |oversetrarra|

If |oversetrarra|=10,|oversetrarrb|=1 and oversetrarra.oversetrarrb=0 , then |oversetrarraxxoversetrarrb|= _____.

If oversetrarra.oversetrarrb=0 and oversetrarraxx(oversetrarrbxxoversetrarrc)=oversetrarr0 then oversetrarra.oversetrarrc=?

If oversetrarra,oversetrarrb,oversetrarrc are unit vectors such that oversetrarra+oversetrarrb+oversetrarrc=0 , then what is the vlue of oversetrarraoversetrarrb+oversetrarrboversetrarrc+oversetrarrcoversetrarra ?

Find the vector of magniltude 5 units and parallel to the resultant of the vectors oversetrarra=2overset^i+3overset^j-overset^k and oversetrarrb=overset^i-2overset^j+overset^k then find the angle between oversetrarra+oversetrarrb and oversetrarra-oversetrarrb .

What is angle between vector vecA and -vecA ?

If hata.hatb=1/2 then what is the angle between hata and hatb ?