Question

An arithmetic sequence has a 10th term of 17 and a 14th term of 30.find the common difference

Answer 1

Answer:

In an AP,

10th term =17

a+9d=17———eq-1

14th term =30

a+13d=30———eq-2

From eq-1 and eq-2

a+ 9d= 17

(–)a+13d=30

————————

-4d=13

d=13/-4