SOLUTION: Find 2+4+6+8+....200, the sum of the first 100 positive integers.

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Question 481826: Find 2+4+6+8+....200, the sum of the first 100 positive integers.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
Find 2+4+6+8+....200, the sum of the first 100 positive integers
S%5Bn%5D+=%28n%2F2%29%28a%5B1%5D+%2B+a%5Bn%5D%29
S%5B100%5D+=%28100%2F2%29%282+%2B+200%29+=+10100%29