Can anybody tell me the formula for calculating the Sum of the following series :
1,1,2,1,1,2,2,1,1,2,2,2,1,1,2,2,2,2,1,1,2,2,2,2,2,1,2,2,2,2,2,2,1,2,2,2,2,2,2,2,1,1,2,2,2,2,2,2,2,2,1.............................upto n number of terms?If any answered this I will mark him/her the brainliest.

1
There is no formula to calculate the sum
there is

Answers

The Brainliest Answer!
2015-07-19T18:36:20+05:30
Sum of nth term:
AP
Sn = n/2(2a+(n-1)d)
GP
Sn = a(1-r^n)/1-r    (r<1)
Sn = a(r^n-1)/r-1    (r>1)
2 5 2
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