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Math Help - Convexity and norm

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    Convexity and norm

    Im stuck on this 2 questions. question 1a, so i use the thoerom of convexity. but how would i apply it to the question?

    another main concern for question 2. I know how to draw norm 1 and norm infinity. but how do i draw norm 1 + norm Inf??

    thanks
    Attached Thumbnails Attached Thumbnails Convexity and norm-img_024911.jpg  
    Last edited by DiamondVH123; November 24th 2012 at 12:47 AM.
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