Question

Find the 13th term in the following arithmetic sequence

2,5,8,11

Answer 1

38

The n th term of an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = 5 - 2 = 3 , thus

= 2 + (12 × 3) = 2 + 36 = 38

Explanation: