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anonymous

  • 5 years ago

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  1. anonymous
    • 5 years ago
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  2. anonymous
    • 5 years ago
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    I need help on proving left side of the subtraction sigma notation to be equal to the right side. n n n Σ (ai - bi) = Σ ai - Σ bi i=m i=m i=m

  3. anonymous
    • 5 years ago
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    have attached my work so somoene can help me, also this what the teacher said about it, You need to start with one side and end with the other side. It looks like you started with the right hand side and ended with the right hand side. I suggest starting with the left hand side and ending with the right hand side. The first few terms of the left hand side will be: (a1 - b1) + (a2 - b2) + (a3 + b3) +... Start with this and put all the a's together and put all the b's together. Work your algebra magic to get the right hand side of the equation.

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