If `A =B=C=1` and `X= overline(ABC)+B overline(BC) + C overline(AB)`, then `X=`

overline(OA)+6overline(BC)+overline(AB)+5overline(OB)=

If overline (AB) bot overline (BC) and overline (BC) bot overline (CD) , then how are overline (AB) , overline (CD) ?

If the position vectors of points A, B, C and overline(a), overline(b), overline(c)" are "overline(c)=5overline(a)-4overline(b) , then

If ABCDE is a pentago, then overline(AB)+overline(BC)+overline(CD)+overline(DE)-overline(AE)=

If the position vectors of points A, B, C and overline(a), overline(b), overline(c)" are "overline(c)=(7overline(a)-3overline(b))/(4) , then

If ABCD is a quadrilateral, then 2overline(AB)+3overline(BC)+2overline(CD)+overline(DA)+overline(CA)+overline(DB)=

If overline(a) and overline(b) represent the sides overline(AB) and overline(BC) of a regular hexagon ABCDEF, then overline(FA)=

If the angle between overline(a) and overline(b) is (pi)/(6) and overline(c)=overline(a)+3overline(b) , then c^(2)=