A set of linear equations is given in the form Ax = b, where A is a 2 × 4 matrix with real number entries and b ≠ 0. Will it be possible to solve for x and obtain a unique solution by multiplying both left and right sides of the equation by A^T (the superscript T denotes the transpose) and inverting the matrix A^T A? Answer is
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सही उत्तर: (B) No, it is not possible to get a unique solution for any 2 × 4 matrix A.
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