The P.V.'s of the vertices of a triangle are `2bari+3barj+4bark, 4bari+6barj+3bark, 3bari+2barj+3bark` P.V. of orthocenter is

[bari-barj bark]+[-bari-barj bark]+[bari-bark bark] =

Find the value of [bari+barj+bark,bari-barj,bari+2barj-bark] .

If the three vectors 2bari -barj +bark, bari+ 2barj -3bark, 3bari + lamdabarj + 5bark are coplanar then lamda =

If the volume of tetrahedron with edges bari+barj-bark,bari+abarj+bark and bari+2barj-bark is a/6 then a=

Find the volume of the tetrahedron having the coterminus edges 2bari + barj +bark, bari -3barj +2bark, bari -bark .

Find the volume of the tetrahedron with edges bari+2barj+2bark,2bari-barj+2bark,2bari+2barj-bark

Show that the vectors bari+barj+bark,bari+barj,3bari+3barj+bark are coplaner

The volume of a parallelopiped whose co-terminus edges are 2bari - 3barj , bari + barj - bark and 3bari - bark is :

If the position vectors of A,B and C are respectively 2bari-barj+bark, bari -3barj-5bark and 3bari - 4barj - 4bark, " then " cos^(2) A =

The P. V. of the points A, B, C, D are 3bari-2barj-bark,2bari+3barj-4bark,-bari+barj+2bark,4bari+5barj+lamdabark respectively. If the points A, B, C, D lie on the same plane, then lamda=