Question

Se considera reperul cartezian (0 ,i ,j) si punctele A(2, -3) ,B (4,1) si M mijlocul segmentului (AB) .Aflati coordonatele vectorilor AB ,BA ,si AM.

Answer 1

A(2,-3); B(4;1); M($(\frac{2+4}{2} ; \frac{-3+1}{2})$ M(3;1) AB=(4-2)i+(1+3)j=2i+4j; BA=-2i-4j; AM=(3-2)i+(-1+3)j=i+2j