## Precalculus (6th Edition) Blitzer

a) The magnitude of the vector $u$ is equal to $6$. b) The magnitude of the vector $v$ is equal to $6$. c) Yes, $u=v$ Both vectors $u$ and $v$ have the same magnitude, that is, $6$ and both are facing the same direction.
a) Here, $|u|=\sqrt{(5-(-1))^2+(1-1)^2}=\sqrt {36}=6$ This means that the magnitude of the vector $u$ is equal to $6$. b) Here, $|v|=\sqrt{(4-(-2))^2+(-1-(-1))^2}=\sqrt {36}=6$ This means that the magnitude of the vector $v$ is equal to $6$. c) Yes, $u=v$ Both vectors $u$ and $v$ have the same magnitude, that is, $6$ and both are facing the same direction.