Consider the two vectors below
x=[4,2,-2,1]
y=[1,a,2,-2]
What should the value of a be so that x*y=0 ?
a. a=0
b. a=1
c. a=-2
d. a=2
d.a=2 II c.a b.a 2 =1 a.a=0 What should the value of a be so that - y = 0? 19. Consider the two vectors below [1,a,2,-2] [4,2,-2,1]