Chapter 4.1, Problem 54E

Writing a Linear Combination In Exercises $53$and $54$, use a software program or a graphing utility to write $v$as a linear combination of $u_1$, $u_2$, $u_3$, $u_4$, and $u_5$. Then verify your solution.

$\begin{array}{rll}v& =& \left(5,8,7,-2,4\right)\\ u_1& =& \left(1,1,-1,2,1\right)\\ u_2& =& \left(2,1,2,-1,1\right)\\ u_3& =& \left(1,2,0,1,2\right)\\ u_4& =& \left(0,2,0,1,-4\right)\\ u_5& =& \left(1,1,2,-1,2\right)\end{array}$