Easy sqeuence question

  • Thread starter Whatupdoc
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  • #1
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List the first 10 trems of each of these sequences.

i need help with this one:
1.) the sequence whose nth term is the sum of the first n positive integers

1,2,3,6,12,24,48,96....

i'm not really sure if this is correct. what im doing is just adding the previous numbers together to get an answer.
 

Answers and Replies

  • #2
TD
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"the sequence whose nth term is the sum of the first n positive integers"
So for n = 1, add the first 'one' integers: 1
For n = 2, add the first two integers: 1+2 = 3
For n = 3, add the first three integers: 1+2+3 = 6
...
 

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