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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the unit vector will either be <4/5, <-3/5> or the exact oposite of the that vector which is <-4/5, 3/5>
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?
Originally Posted by live_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> As written the answer is not given. The answer is $\displaystyle \left\langle {\frac{4}{5},\frac{{ - 3}}{5}} \right\rangle $.
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