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# Find the sum of the series . Show your work.

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Find the sum of the series$$\sum_{n-1}^{15}(2n-1)$$ . Show your work.

NOTE: The number (15) is suppose to be above (nominator), the Math symbol and (n-1) is suppose to be at the bottom (denominator).

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Is this what you mean?

∑[2n -1], n=-1 to 15 = 221

Guest Feb 6, 2018