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Mathematics II208010 marksNumerical: least squares solutionLeast squares problems

Find the least square solution of Ax = c where and compute the associated least square error. [10+0]

Find the least square solution of $Ax = c$ where

$$A = \begin{bmatrix} 1 & -3 & 3 \ 1 & 5 & 1 \ 1 & 7 & 2 \end{bmatrix}, \quad c = \begin{bmatrix} 5 \ -3 \ 5 \end{bmatrix}$$

and compute the associated least square error. [10+0]

$$A = \begin{bmatrix} 1 & -3 & 3 \ 1 & 5 & 1 \ 1 & 7 & 2 \end{bmatrix}, \quad c = \begin{bmatrix} 5 \ -3 \ 5 \end{bmatrix}$$ We solve the normal equations $A^TA\hat{x} = A^Tc$. --- $$A^T = \begin{bmatrix} 1 & 1 & 1 \ -3 & 5 & 7 \ 3 & 1 & 2 \end{bmatrix}$$ $$A^TA = \begin{bmatrix} 3 & 9 & 6 ...

Up nextDetermine the column of the matrix A are linearly independent where A = beginbmatrix 3 & -