Question

Help with vectors

Answer 1

For the following vector v, find magnitude||u||, the unit vector with the same direction angle as v.

v = -i + 3j

Answer 2

I don't understand the question?? find magnitude of u?

Answer 3

@Isaiah.Feynman ||u||i believe is just ||v||

Answer 4

they are just replacing the variable

Answer 5

so in this case sqrt(-1)^2 + (3)^2

Answer 6

Yes.

Answer 7

so \[\frac{ -i +3j }{ \sqrt10 }\]

Answer 8

And I believe the final answer would be \[-\frac{ \sqrt10 }{ 10 }+\frac{ 3\sqrt10 }{ 10 }\]

Answer 9

and i found out ||u||= the unit vector

Answer 10

I think...