Thread: Converge of Diverge...why?

Sum from 1 to infinity of:

n/(1000n + 1) (does this converge or diverge...why?)


My thought is take the lim from 1 to infinity of the above expression.

That will end up 1/1000. So this converges...Right?

Originally Posted by jzellt

Sum from 1 to infinity of:

n/(1000n + 1) (does this converge or diverge...why?)


My thought is take the lim from 1 to infinity of the above expression.

That will end up 1/1000. So this converges...Right?

Note: The divergence test states if



If the limit of the series is not 0, the series diverges, you can simply take limit here and apply L Hoptials rule since the limit is of indeterminate form here, and notice the limit here is not 0, so it diverges, or you can do as acc100jt did, I know when i have a rational fraction with equivalent degree in denominator and numerator the limit is the ratio of the coefficients. However, but are ways of showing how the limit is not 0.

and .

By Test for Divergence, the series is divergent