सदिशों `vec(AB),vec(BC),vec(CD)` और `vecAE` का योगफल ज्ञात करे, जहाँ ABCDE एक पंचभुज है!

The value of vec(AB)+vec(BC)+vec(DA)+vec(CD) is

In triangle ABC, find vec(AB)+vec(BC)+vec(CA)

In quadrilateral ABCD, vec(AB)=veca, vec(BC)=vecb, vec(AD)=vecb-veca If M is the mid point of BC and N is a point on DM such that DN=4/5 DM , then vec(AN)=

ABCDEF is a regular hexagon. If vec(CD)=vec(a), vec(DE)=vec(b), " find " vec(AB), vec(BC), vec(BF), vec(CA), vec(AD) " and " vec(BD) in terms of vec(a) " and " vec(b) .

ABCD is a quadrilateral. Forces vec(AB), vec(CB), vec(CD) and vec(DA) act along its sides. What is their resultant ?

ABCD is a quadrilateral. Force vec(AB), vec(CB), vec(CD) and vec(DA) act along its sides. What is their resultant ?

A, B, C, D are four points in the space and satisfy |vec(AB)|=3, |vec(BC)|=7, |vec(CD)|=11 and |vec(DA)|=9 . Then find the value of vec(AC)*vec(BD) .

A, B, C, D are four points in the space and satisfy |vec(AB)|=3, |vec(BC)|=7, |vec(CD)|=11 and |vec(DA)|=9 . Then find the value of vec(AC)*vec(BD) .

If A,B,C and D are any four points in space prove that |quad vec (AB) xx vec (CD)+ vec (BC) xx vec (AD) + vec (CA) xx vec (BD)|=4(area of Delta ABC) .