Rechnen mit Vektoren im R²

1. a + b = ( -5 | 8 )
2. a + b = ( 5 | -8 )
3. a + b = ( 5 | 8)
1. a - b = ( -3 | -2 )
2. a - b = ( 3 | -2 )
3. a - b = ( 3 | 2 )
1. 3 * a = ( 12 | 9 )
2. 3 * a = (-12 | 9 )
3. 3 * a = (12 | -9)
1. nL = ( 3 | 4 )
2. nL = (-3 | 4 )
3. nL = (3 | -4)
1. nR = (3 | -4)
2. nR = (-3 | 4)
3. nR = (3 | 4)