If D,E and F and are respectively the mid points of AB,AC and BC in `/_\ABC, then `vec(BE)+vec(AF)=` (A) `vec(DC)` (B) `1/2vec(BF)` (C) `2vec(BF)` (D) `3/2vec(BF)`

If D, E, F are respectively the mid-points of AB, AC and BC respectively in a Delta ABC, " then " vec (BE) + vec(AF) =

If D and E are the mid-points of sides AB and AC of a triangle ABC respectively, show that vec BE+vec DC=(3)/(2)vec BC

If D and E are the mid-points of sides AB and (AC of a triangle ABC respectively,show that )/(BE)+vec DC=(3)/(2)vec BC

If ABCDE is a pentagon, then vec(AB) + vec(AE) + vec(BC) + vec(DC) + vec(ED) + vec(AC) is equal to

If C is the mid point of AB and P is any point outside AB then (A) vec(PA)+vec(PB)+vec(PC)=0 (B) vec(PA)+vec(PB)+2vec(PC)=vec0 (C) vec(PA)+vec(PB)=vec(PC) (D) vec(PA)+vec(PB)=2vec(PC)

If A, B, C, D be any four points and E and F be the middle points of AC and BD respectively, then A vec(B) + C vec(B) +C vec (D) + vec(AD) is equal to

If D is the mid-point of the side BC of a triangle ABC, prove that vec AB+vec AC=2vec AD .

If D E and F be the mid ponts of the sides BC, CA and AB respectively of the /_\ABC and O be any point, then prove that vec(OA)+vec(OB)+vec(OC)=vec(OD)+vec(OE)+vec(OF)

If D,E,F are the mid points of the side BC,CA and AB respectively of a triangle ABC,write the value of vec AD+vec BE+vec CF