Question

Given that the first term is 1, what is the 100th term of the sequence {1,2,4,7,11...}?

Answer 1

Sorry, I need helps.

Answer 2

Well, don't tag everyone in maths group.

Answer 3

Well, do you know another way to get a huge amount of helps?

Answer 4

ITS ANNOYING - NO ONE WILL HELP YOU IF YOU FRIGGIN TAG PEOPLE. you're only getting a block from me.

Answer 5

Blocking won't stop you from getting tagged.
And watch the language.

Answer 6

we can start by determining if there is a pattern that can be discovered from the given values

Answer 7

1 2 4 7 11
+1 +2 +3 +4
+1 +1 +1

Answer 8

we can pull of the first term in each row to form an equation with

1+1(n) + 1(n)(n-1)/2 should work, this has something to do with pascals triangle in effect

1 + n + n^2/2 - n/2

(2 + n + n^2)/2 ; for n=0,1,2,3,...

Answer 9

the 100th term in this case is n=99 since we start at 0

Answer 10

So 100th term is 4951, right?

Answer 11

let me ask my calculator :)

Answer 12

This is what my calculator told me haha

Answer 13

4951 is what i get ;)

http://www.google.com/search?q=(1%2B99%2B99%5E2)%2F2&aq=f&oq=(1%2B99%2B99%5E2)%2F2&sugexp=chrome,mod=0&sourceid=chrome&ie=UTF-8

Answer 14

Good. Thank for helps,and sorry for tagged many users, though.

Answer 15

i dont think that remark meant to be directed to you, but we have had an issue with a person causing trouble today that has been making a list of users in tagged format. And that person has been rather annoying

Answer 16

good luck :)