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If a and b non singular …

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If a and b non singular matrices then prove that (ab)-1=b-1a-1

    • Posted by Khushi Agrawal 7 years, 4 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Vidushi Shukla 7 years, 4 months ago

    Take (ab)(ab)-1=i Premultiply by a-1 and then premultiply by b-1 a-1(ab)(ab)-1=a-1 i ib(ab)-1=a-1 i b-1b(ab)-1=b-1a-1 (ab)-1=b-1a-1

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