Question

Let ABCD is parallogram if a vecter,b vecter,c vecter be the position vecter of ABC respectively them find the position vector of D with respect to O?

Answer 1

\(\overrightarrow {AB} = \overrightarrow {DC}\)

P.V of B - P.V A = P.V of C - P.V of D

\(\vec {b} - \vec {a} = \vec {c} - \vec {d}\)

\(\vec {d} = \vec {c} + \vec {a} - \vec {b}\)