m (4;-3), n(-2;1)
m+n (4+(-2); -3+1)
m+n (2; -2)
n-m=n+(-m)
-m(-4;3)
n-m (-2-4; 1+3)
n-m (-6; 4)
|n-m| = √((-6)²+4²) = √(36+16) = √52 = 2√13
m (4;-3), n(-2;1)
m+n (4+(-2); -3+1)
m+n (2; -2)
n-m=n+(-m)
-m(-4;3)
n-m (-2-4; 1+3)
n-m (-6; 4)
|n-m| = √((-6)²+4²) = √(36+16) = √52 = 2√13