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).
Is this what you mean?
∑[2n -1], n=-1 to 15 = 221
+525 
