The sum of (p + q)^th and (p – q)^th terms of an AP is equal to

Question

Question

This question was previously asked in

NDA (Held On: 21 Apr 2019) Maths Previous Year paper

Attempt in App

Answer 1

Concept:

The nth term of an AP is given by: T_n = a + (n - 1) × d, where a = first term and d = common difference.

Calculation:

As we know that, the nth term of an AP is given by: T_n = a + (n - 1) × d, where a = first term and d = common difference.

Let a be the first term and d is the common difference.

...1)

...2)

By adding (1) and (2), we get