If `vec p`and `vec q` are two unit vectors and the angle between them is `60^(@)` then `((1+vec p. vec q))/((1-vec p.vec q))` is ?

If vec a and vec b are two unit vectors and the angle between them is 60^@ then ((1+vec a.vec b))/((1-vec a.vec b)) is

Two vectors vec P and vec Q

Let vec(a) and vec(b) be two unit vectors and theta is the angle between them. Then vec(a)+vec(b) is a unit vector if :

What can be the angle between (vec(P) + vec(Q)) and (vec(P) - vec(Q)) ?

If |vec p|=2|vec q|=3 then (|vec p xxvec q|)/(sin(vec p,vec q))=

What is the angle between vec P and the resultant of (vec P+vec Q) and (vec P-vec Q)

If vec p and vec q are unit vectors forming an angle of 30^(0); find the area of the parallelogram having vec a=vec p+2vec q and vec b=2vec p+vec q is its diagonals.

If vec P and vec Q are two vectors, then the value of (vec P + vec Q) xx (vec P - vec Q) is

What is the anlge between vec P xx vec Q and vec Q xx vec P is

Let vec a,vec b, and vec c be three non coplanar unit vectors such that the angle between every pair of them is (pi)/(3). If vec a xxvec b+vec b .If where p ,q, r are scalars then the value of (p^(2)+2q^(2)+r^(2))/(q^(2)) is