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For the sum -9 + -1 + 7 + 15 + ... + 71:

 

(a) Rewrite the sum using summation notation (Σ).

 

(b) Evaluate the sum.

 Jan 14, 2020
 #1
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\(\sum_{1}^{11}\) -9 + 8(n-1)      is one way

 

= 341

 Jan 14, 2020

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