Question

Find the first term and common difference of a.p. 2,5,8,11

Answer 1

Answer:

d= 3

common difference is find by subtacting the term from previous term

a= 2

d= a2-a1

5-2

3

= a3-a2

8-5

3

a4-a3

11-8

3

so common difference is 3

Answer 2

Answer:

first term,a1 = 2

common difference,d = 3

d = a2-a1 = 5-2 = 3