Let's Break Off This Sum First

Algebra Level 4

Define the sequence tr t_r by

r=1ntr=n(n+1)(n+2)(n+3)8. \sum_{r=1}^n t_r = \dfrac{n(n+1)(n+2)(n+3)}8 .

Find limnr=1n1tr \displaystyle \lim_{n\to\infty} \sum_{r=1}^n \dfrac1{t_r} .

×

Problem Loading...

Note Loading...

Set Loading...