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Math Help - summation and weights problem - proof

  1. #1
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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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  2. #2
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    Re: summation and weights problem - proof

    Hey homalina.

    Can you show what you have tried already? What you are thinking? You need to make an attempt yourself before you get specific advice and suggestions.
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  3. #3
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    Re: summation and weights problem - proof

    jawabe soal 6.pdf - This is what I have done for the first part - and for the second part I know that I am supposed to square the whole of the second part of the question and then I will get 1/the exact denominator of the second part of the question but I am not sure if thats correct and the third part I just dont have a clue...

    Thanks!
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