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 D and E are the mid-points of sides AB and AC of a triangle A B C respectively, show that vec B E+ vec D C=3/2 vec B Cdot

If D and E, are the midpoints of the sides AB and AC of a triangle ABC, prove that vec(BE) +vec(DC)=(3)/(2)vec(BC).

ABCD is a quadrilateral. If M and N are the mid points of the sides vec(BD) and vec(AC) , respectively. Show that vec(AB)+vec(AD)+vec(CB)+vec(CD)=4vec(NM)

In a triangle ABC, if D and E are mid points of sides AB and AC respectively. Show that vecBE+ vecDC=(3)/(2)vecBC .

Let A, B, and C be the vertices of a triangle. Let D, E, and F be the midpoints of the sides BC, CA, and AB respectively. Show that vec(AD)+vec(BE)+vec(CF)=vec(0) .

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

If D is the midpoint of the side BC of a triangle ABC, prove that vec(AB)+vec(AC)=2vec(AD)

If M is the midpoint of the side vec(BC) of a triangle ABC, prove that vec(AB)+vec(AC) = 2vec(AM)