Telescoping Sum Of Fractions

Algebra Level 2

Evaluate

$\frac{ 1}{ 2(n-1) \times n } - \frac{ 1} { 2 n \times (n+1) }.$

\frac{ 1} { (n-1) \times (n+1) }

\frac{ 2n-1 } { (n-1) \times n \times (n+1) }

\frac{ 1} { (n-1) \times n \times (n+1) }

\frac{ 1}{n}