import numpy as np

a $=$ np$.$zeros$(5)$

b $=$ np$.$zeros$(5$

a$\_$norm $=$ np$.$sqrt$($np$.$sum$($a$**2))$

b$\_$norm $=$ np$.$sqrt$($np$.$sum$($b$**2))$

cosine$\_$similarity $=$ np$.$dot$($a$,$b$)/($a$\_$norm$*$b$\_$norm$)$

print$($cosine$\_$similarity$)$

$0$

$1$

$0\mathrm{.}5$

Error