Respuesta :
If value of the series to within an error is 10^−5. The smallest value of N that approximates S to within an error of at most 10^−5 is: 0.99259.
Smallest value of N
First step is to find the term n that will satisfy the condition
(αn+1)<10^-5
(-1)^n+1÷(n+1)^7<10^-5
=1÷(n+1)^7<10^-5
=(n+1)^7>10^-5
=n>10^5/7-1
=n>4.179
Second step is to expand the series up to 5 terms in order to find the smallest value
∑ (-1)^n+1÷n^7=(-1)^1+1÷1^7+=(-1)^2+1÷2^7+=(-1)^3+1÷3^7+=(-1)^4+1÷4^7+=(-1)^5+1÷5^7
=1+(-1÷128)+(1÷2187)+(-1÷16384)+(1÷78125)
=0.99259
Therefore the smallest value of N that approximates S to within an error of at most 10^−5 is 0.99259.
Learn more about smallest value of N here:https://brainly.com/question/2881645