Question

Fie u=2i+3j,v=(3+m)i+(m-2)j coliniari

Answer 1

Salut.

x1=2 y1=3

x2=3+m y2=m-2

$\frac{x1}{x2} = \frac{y1}{y2} =>\frac{2}{3} =\frac{3+m}{m-2} =>2m-4=9+3m=>m=-4-9=-13$