SOLUTION: Please help me find this sum: 15 E-sigma notation {1+(-1)^i} i = 1

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Question 326190: Please help me find this sum:
15
E-sigma notation {1+(-1)^i}
i = 1
Answer by solver91311(24713) About Me  (Show Source):
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If is odd, and the term is . If is even, and the term is .

There are 8 odd integers on the closed interval [1,15], so there are 8 terms worth 0 each for a total of 0. There are 7 even integers on the same interval, so there are 7 terms worth 2 each for a total of 14. 0 plus 14 is 14.

John