Question

use the dot product to find |v| when v=(2,7)

Answer 1

We have that v*v=$|v|^2$. Hence, v*v= (2,7)*(2,7)=2*2+7*7=53. Thus, $|v|^2=53 and |v|= \sqrt{53}$. The correct choice is d.

Answer 2

Answer:

D

Step-by-step explanation:

edge answer