If a = (-4, -8) and b= (-2, -6), find |2.5a - 3b| A) 20 B)

Last updated: 8/7/2022

If a = (-4, -8) and b= (-2, -6), find |2.5a - 3b| A) 20 B) 2√5 C) -6 D) 4√2