Question

Plz help me to solve this problem in maths

Answer 1

Given Sum is:

$\frac{1}{1 * 2} + \frac{1}{2 * 3} + \frac{1}{3 * 4} .................................\frac{1}{n(n + 1)}$

$\frac{1}{1} - \frac{1}{2} + \frac{1}{2} - \frac{1}{3} + \frac{1}{3} - \frac{1}{4} + ....................................... \frac{1}{n} - \frac{1}{n + 1}$

$1 - \frac{1}{n + 1}$

$\frac{n + 1 - 1}{n + 1}$

$\frac{n}{n + 1}$


Hope this helps!

Answer 2

Hi,

Please see the attached file!


Thanks