Question

Find the 19th term of the arithmetic sequence whose common difference is d = 2 and whose first term is a, = 5.

Answer 1

41

Explanation:

The n th term of an arithmetic sequence is

`a_(n)` = a₁ + (n - 1)d

Here a₁ = 5 and d = 2, then

a₁₉ = 5 + (2 × 18) = 5 + 36 = 41