Question

The difference of nth term and (n – 1)th term of an AP is

(a) n (b) Sn (c) 2n (d) S2n​

Answer 1

Answer:

(a) n

The difference between the nth term and (n-1) th term of a sequence in independent of n then. The difference between n th term and (n-1) term of sequence is independent of n.

Answer 2

Step-by-step explanation:

nth term = a + ( n - 1 )d

(n-1) th term = a + ( n - 2 )d

then

nth term - (n-1) th term

= a + ( n - 1 )d - { a + ( n -2 )d}

= a + nd - d - a - nd + 2d

= d