Question

1+11+111+1111+11111....
the geometric series can be summed to infinity. Find this sum

Answer 1

12345678901234567890...

Answer 2

111....n times = 10^0 + 10^1 ... 10^(n-1)
so we have

1 + 10 + 1 + 10^2 + 10 + 1 + 10^3 + 10^2 + 10 + 1.....

=> 1(n-1) + 10(n-2) + 10^2(n-3) .....

seems and AGP..you know AGP ?

Answer 3

dont think you meant infinity..did you? you want just sum upto n terms right>?

Answer 4

ohh well..is not an AGP,,r in AGP is <1 ..here is not the case..