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3 0 -1 2 3 0 0 4 1 inverse of matrix elementary method

    • Posted by Surabhi Roy 7 years, 5 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Kriti Chhetri 7 years, 5 months ago

    A inverse = - 9 12 - 5 secnd row - 2 3 - 2 third row - 4 4 1. [R1->R1-R2] then [R2->R2-2R1] then [R2-2R3] then R1->R1+3R2&R3->R3-4R2 then R1->R1+R3...... And you will get the answer as i mentioned above.

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