Answers

2016-03-21T23:56:07+05:30
Puting n=1,2,3,4.......... we get 2,5,8,11.......& so on
0
2016-03-24T06:30:52+05:30
3n - 1 = 0 3n = 1 n = 1/3
1 5 1
I dont care if I dont get the brainliest answer,but I am worry if u didn't understand what I am trying to teach you