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Mathematics 24 Online
OpenStudy (anonymous):

I need help determining if this series converges or diverges, using the integral test.

OpenStudy (anonymous):

\[\sum_{n=1}^{infinity} 1/(n^.00001)\]

OpenStudy (anonymous):

not sure how to find integral of that a equation i think is my problem

OpenStudy (amistre64):

take the intgral of x^(-.00001) from 1 to inf

OpenStudy (amistre64):

change n to x change the sumation to integration and play away

OpenStudy (anonymous):

so would it be like 1.0001x^.99999 evaluated from 1 to infinity?

OpenStudy (anonymous):

Then take the limit?

OpenStudy (amistre64):

right idea yes

OpenStudy (amistre64):

power rule ints up to\[\frac{x^{n+1}}{n+1}\]

OpenStudy (amistre64):

make sure youve got your values right

OpenStudy (anonymous):

I may be slightly off but im assuming thats the right idea.. Thanks! So I think I found it it diverges

OpenStudy (amistre64):

theres something about 1 being a determining factor in this; but i cant recall it that well; id have to reinvent it to be sure :)

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