NUMBER SEQUENCE HELP!!
NUMBER SEQUENCE HELP!!
(OP)
Can anyone help me find a formula to find the nth term of 1+2+3+4+5+6+7+8+....n = ???
i.e if n=8 then the answer is 36, so if for e.g i wanted to find the answer to n=1000 i can use a formula.
Thanks, not too sure if this is the right forum but there aren't a great deal of maths ones!
i.e if n=8 then the answer is 36, so if for e.g i wanted to find the answer to n=1000 i can use a formula.
Thanks, not too sure if this is the right forum but there aren't a great deal of maths ones!





RE: NUMBER SEQUENCE HELP!!
RE: NUMBER SEQUENCE HELP!!
RE: NUMBER SEQUENCE HELP!!
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RE: NUMBER SEQUENCE HELP!!
http://mathworld.wolfram.com/topics/Puzzles.html
RE: NUMBER SEQUENCE HELP!!
- adding up the first and the last number in a series gives (n+1),
- there is n/2 pairs like that,
- so to get a total sum, you just multiply (n+1)*n/2