Question

vi. The sum of first n odd natural numbers is
(a) 2n +1 (b) n2
(c) n2 –1 (d) n2 +1

Answer 1

Answer:

The first n odd natural numbers are 1, 3, 5, ... 2n-1. This forms an arithmetic progression with first term 1, common difference 2 and last term (2n-1). The sum is given by S = 1+3+5+...17-Jul-2020