True or false--

the unit vector in the direction of <4, -3> is <4/5, 3/5>.

I say true, am I correct?

When I used the direction formula, I came up with <4/5, -3/5>. Is this the same vector as <4/5, 3/5>?

Thanks for your help!

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- May 17th 2009, 09:02 AMlive_laugh_luv27vector direction
True or false--

the unit vector in the direction of <4, -3> is <4/5, 3/5>.

I say true, am I correct?

When I used the direction formula, I came up with <4/5, -3/5>. Is this the same vector as <4/5, 3/5>?

Thanks for your help! - May 17th 2009, 09:08 AMlmasud
the unit vector will either be <4/5, <-3/5> or the exact oposite of the that vector which is <-4/5, 3/5>

- May 17th 2009, 09:12 AMlive_laugh_luv27
ok, these are the choices I'm given.

Unit vector in direction of <4, -3> is:

a. <4/25, -3/25>

b. <4/sqrt7, -3/sqrt7>

c. <4/5, 3/5>

Would it be c? - May 17th 2009, 09:52 AMPlato