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What is the value of ∑n=13(17n−15)

User AMunim
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2 Answers

1 vote
did you mean ->
\bf \sum\limits_(n=1)^(3)\ 17n-15 \ ?
User Carlfriedrich
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2 votes
13 x 17n - 13 x 15
= 221n - 195
User Zerohedge
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