In `triangle ABC` if D,E,F are the midpoints of sides BC, CA, AB respectively and `vec AD+2/3 vec BE +1/3 vec CF = k vecAC`then k=

In /_ABC if D.E.F are the midpoints of sides BC,CA, AB respectively and vec AD+(2)/(3)vec BE+(1)/(3)vec CF=kvec AC then k=

ABC is any triangle and D,E, F are mid-poin of sides BC, CA and AB respectively. Let vec AB= vec b and vec AC = vec c Express the third side and the three mdeians in therms of vecb and vec c

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, E, F are the midpoints of BC, CA, AB of Delta ABC, then vec(A)D + vec(B)E + vec(C)F =

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

ABC is any triangle and D,E,F are the mid-points of sides vec(BC),vec(CA) and vec(AB) respectively. Express the vec (BE) and vec (CF) as linear combination of vectors vec (AB) and vec (AC) .

let A(vec a),B(vec b),C(vec c) be the vertices of the triangle ABC and D,E,F be the mid point of sides BC,CA,AB respectively.if P divides the median AD in the ratio 2:1 then position vector of P

If D, E, F are respectivley the mid points of AB, AC and BC respectively in a triangle ABC, then vec BE + vec AF =