Question

Q: Find the sum of n terms of the following series :
$\frac{1}{2 \times 5} + \frac{1}{5 \times 8} + \frac{1}{8 \times 11} + .....$
[NCERT] [11TH]

Answer 1

Please see the attachment

Answer 2

Q: Find the sum of n terms of the following series :
$\frac{1}{2 \times 5} + \frac{1}{5 \times 8} + \frac{1}{8 \times 11} + .....$
[NCERT] [11TH]