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Math Help - Any ideas here please? :-)

  1. #1
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    Any ideas here please? :-)

    Hi guys,
    Would appreciate a bit of advice on this...
    If I have a collection of Matrice s let's call this S. S={M | det M = 1} How do I prove that if T & Y are in S then so is TY and also if T is part of S then T^-1 is also a part of S.

    Anyone any experience with this type of question?
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  2. #2
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    Quote Originally Posted by infinitepersepctives View Post
    Hi guys,
    Would appreciate a bit of advice on this...
    If I have a collection of Matrice s let's call this S. S={M | det M = 1} How do I prove that if T & Y are in S then so is TY and also if T is part of S then T^-1 is also a part of S.

    Anyone any experience with this type of question?

    Use the product theorem: \det(AB)=\det A\cdot\det B

    Tonio
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