Find a Least-Squares Solution of the Inconsistent System Ax =

Multiple Choice

Find a least-squares solution of the inconsistent system Ax = b.
- $$\mathrm { A } = \left[ \begin{array} { l l } 1 & 2 \\3 & 4 \\5 & 9\end{array} \right] , \mathrm { b } = \left[ \begin{array} { l } 1 \\5 \\1\end{array} \right]$$

A)
$$\left[ \begin{array} { c } \frac { 73 } { 1754 } \\- \frac { 77 } { 3508 }\end{array} \right]$$
B)
$$\left[ \begin{array} { c } \frac { 121 } { 42 } \\- \frac { 51 } { 28 }\end{array} \right]$$

C)
$\left[\begin{array}{l}-\frac{2}{21} \\-\frac{11}{6}\end{array}\right]$

D)

$\left[\begin{array}{c}\frac{146}{27} \\-\frac{77}{27}\end{array}\right]$