Question

If A î = (2 m) î - (3 m) ſ and
(2 m) j, then Añ- 2B î= ?
(a) (1 m)ſ
(b)(-1 m)ſ
(c) (4 m){-(7 m)ſ
(d) (4 m)î + (1 m)​

Answer 1

c

please mark me brilliant