а (3; -2)
b (-6; 2)
2a =(2*3; 2*-2) =(6;-4)
1/2 *b =(1/2 *-6; 1/2 *2) =(-3;1)
c= 2a -1/2 *b =(6-(-3); -4-1) =(9;-5)
|c|= √(9^2 +(-5)^2) =√106 ~10,29
а (3; -2)
b (-6; 2)
2a =(2*3; 2*-2) =(6;-4)
1/2 *b =(1/2 *-6; 1/2 *2) =(-3;1)
c= 2a -1/2 *b =(6-(-3); -4-1) =(9;-5)
|c|= √(9^2 +(-5)^2) =√106 ~10,29