Hi everyone
hi everyone,
sorry,the typo got missing.
question
Compute S5 for the following:
an(limit infinity, n=2) if an=(-1)^n +n^n
my working:
n=2,
-1^2 +2^2 = 5
n=3
-1^3+3^3=26
n=4
-1^4+4^4= 257
n=5
-1^5+5^5=3124
n=6
-1^6+6^6=46657
ans:5+26+257+3124+46657=50069
is it correct?thank you for helping
What does "(lim infinity, n=2)" mean? If you are asking about the limit as n goes to infinity, it does not exist. This sequence does not converge.
Yes, those calculations are correct. And it should be easy now to see that the sequence is unbounded and does not converge to any finite limit.my working:
n=2,
-1^2 +2^2 = 5
n=3
-1^3+3^3=26
n=4
-1^4+4^4= 257
n=5
-1^5+5^5=3124
n=6
-1^6+6^6=46657
ans:5+26+257+3124+46657=50069
is it correct?thank you for helping
thank you so much for guiding, i couldn't write it out with symbols cos there is no typo.
i guess i should have wrote limit=infinity, n=2.
am just wondering,is it possible to use the formula =n/2(2a+(n-1)d) to get the answer.i cant find the common ratio.need some opinion on this.
thank you for helping.really appreciate your help & advise.