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The nth term of a sequence is \(a_n = (-1)^{n+1}(3n + 2) \). What is the value of \(a_1 + a_2 + \dots + a_{100} \)?

 Mar 16, 2021
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we have a sequence that goes \(5, -8, 11...\), so we have 5 + (-3)*50=-145

 

please confirm...

 Mar 16, 2021

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