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find the sum of the first 9 terms of the sequence. show all work for full credit. 2, -7, -16, -25, ...
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find the sum of the first 9 terms of the sequence. show all work for full credit. 2, -7, -16, -25, ...

User Albus Dumbledore
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1 Answer

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Sum is: -306 (n; n-1*9; n-2*9; ...; n-8*9)
User Himanshu Mohta
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