Question:

Evaluate the following determinant using the row-reduction method.?

by  |  earlier

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| 1 3 2 |

| 2 8 8 |

| 1 5 12 |

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  1. Just follow these

    = (1/3)det,   3R1

    = (1/3)det, R1 - R2

    = (1/3) det R2 - R1 and R3 - R1, these will make first column 1,0,0

    Now choos second row second column element and make second column 0, 1, 0

    etc.

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