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Math Help - [SOLVED] Help please?

  1. #1
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    Jan 2008
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    [SOLVED] Help please?

    hello i think im posting in wrong forum for that im sorry but recently i started my A level's and one of my choices was further maths. lately i havent been able to grasp a few things in class. for example

    given that "m" is a 2x2 matix

    Show that "m squared" = m + I

    Show that "m^4" - 3m = 2I

    wondering if anyone could help i just can't grasp on how to do this atm..all help will be very much appreciated thankyou.
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  2. #2
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    Jan 2008
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    sorry to have bothered you guys...i feel like such an idiot now how simple it actually is to work this out you can remove this post sorry again and thanks.
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