bbeyond13 bbeyond13

23-12-2014
Mathematics

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1,3,6,10,15,21,28,36,45,55,66,78
Describe the pattern shown above

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jaimi412 jaimi412

23-12-2014

1+2=3
3+3=6
6+4=10
10+5=15
So on..

When increasing in numbers, it adds 1 more than the last.

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23-12-2014

The nth term is the [ (n-1)th term + n ] .

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