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Thread: Summation and weights problem - proof

  1. September 5th 2012, 02:20 PM #1
    homalina
    homalina is offline
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    Summation and weights problem - proof

    I have uploaded my question in the attachment here which is called proofs - please have a look and let me know if u know the answer - I need it really urgently.


    Thanks,
    Attached Thumbnails Attached Thumbnails Summation and weights problem - proof-proofs.png  
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