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Find the length of \( x \). \[ x=\left[\begin{array}{c} -4 \\ -2 \\ 2 \\ -5 \end{array}\right] \] ...
Find the length of \( x \). \[ x=\left[\begin{array}{c} -4 \\ -2 \\ 2 \\ -5 \end{array}\right] \] \[ \|x\|= \] Find the unit vector \( u \) in the direction of \( x \). \[ u=[] \]
![Find the length of \( x \).
\[
x=\left[\begin{array}{c}
-4 \\
-2 \\
2 \\
-5
\end{array}\right]
\]
\[
\|x\|=
\]
Find the unit](https://media.cheggcdn.com/media/ab2/ab27a6b6-1d61-4cba-9728-4cae094195b2/php93nrm1)