Question

find the angle between u and v if u=i+√3j, v=-√3i+j

Answer 1

Try using the dot product definition.

Answer 2

i understand its cos 0 a*b but how do you set it up?

Answer 3

90 degree

Answer 4

thank you but how did you figure that out? please show me?

Answer 5

a.b=ab cos p
a.b=axbx+ayby

Answer 6

so, 4cos p=sqrt 3*1-sqrt 3*1=0

Answer 7

cos p=0, p=90

Answer 8

Thank You!