defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Sequences and Series Arithmetic Progressions
The sum of n arithmetic means between a and b is
1
\(\frac{{n(a + b)}}{2}\)
2
n (a + b)
3
\(\frac{{(n + 1)(a + b)}}{2}\)
4
(n + 1) (a + b)