If n is any positive integer then 1/1.3+1/3.5+1/5.7+.....+1/(2n-1)(2n+1)=

E

Editor

Sep 18, 2022

If n is any positive integer then 1/1.3+1/3.5+1/5.7+.....+1/(2n-1)(2n+1)=

Difficulty: Easy

A:

n/4(n+1)

B:

\frac{n^{2}(n+1)^{2}}{4}

C:

n/2n+1

D:

\frac{n^{2}}{2n+1}

ID: 63273db9ca83163ac3a11697