The sum to infinity of a convergent is series is 243.The sum of the first five terms 242.Determine the values of the common ratio and the first term

2 answers

just use your GP sum formula. You have

a/(1-r) = 243
a (1-r^5)/(1-r) = 242
Now divide and you have
1-r^5 = 242/243 = 1 - 1/243

. . .
Thanks sir
Similar Questions
  1. Is this correct?determine if absolutely convergent and convergent 1. the series from n=0 to infinity of ((-1)^n)/n! I said it
    1. answers icon 0 answers
  2. Is this correct?determine if absolutely convergent and convergent 1. the series from n=0 to infinity of ((-1)^n)/n! I said it
    1. answers icon 0 answers
  3. Is this correct?determine if absolutely convergent and convergent 1. the series from n=0 to infinity of ((-1)^n)/n! I said it
    1. answers icon 0 answers
    1. answers icon 1 answer
more similar questions