Plz find this the sum of (3/1 2) (1/2)+(4/2 3) (1/2) + (5/3 4) (1/2) - Maths - Sequences and Series

Question

Plz find this

the sum of (3/1?2) (1/2)+(4/2?3) (1/2)?+ (5/3?4) (1/2)? to n terms
is

Anikesh Kumar Mishra · Accepted Answer

Plz find this the sum of (3/1?2) (1/2)+(4/2?3) (1/2)?+ (5/3?4) (1/2)?.... to n terms is