If `OACB` is a parallelogram with `vec(OC) =vec a and vec(AB) = vec b`, then `vec(OA)` is equal to

If OACB is a parallelogramwith vec(OC) = vec a and vec (AB) = vec b, " then " vec(OA)=

If OACB is a parallelogrma with vec( OC) = vec(a) and vec( AB) = vec(b) then vec(OA) is equal to

ABCD is a parallelogram . If vec(AB)=vec(a), vec(BC)=vec(b) , then what vec(BD) equal to ?

If ABCDEF is a regular hexagon with vec AB=vec a and vec BC=vec b, then vec CE equals

If ABCDEF is a regular hexagon with vec(AB) = vec(a) ,vec(BC ) = vec(b) then vec(CE) equals :

If ABCD is a parallelogram and vec AB = vec a , vec BC= vec b then show that vec AC = vec a+ vec b and vec BD = vec b- vec a .

If ABCD is a parallelogram then vec(AB) + vec(AD) + vec(CB) + vec(CD) = …………………… .

If vec(a)=vec(OA) " and " vec(b)=vec(AB), " then " vec(a)+vec(b) is -

If ABCD is a parallelogram and vec AB = vec a , vec BC= vec b then give geometrical significance of |quad vec a+ vec b|=|quad vec a- vec b| .