contestada


The sum of the first 8 terms of a particular arithmetic series is 14, and the sum of the first 9 terms of the same series is 27. What is the 9th term of the series ?

Respuesta :

Answer:

a₉ = 13

Step-by-step explanation:

a₉ = [tex]S_{9}[/tex] - [tex]S_{8}[/tex] = 27 - 14 = 13