Question

The algebraic form of an arithmetic sequence is 3 n - 1

a) What is its common difference ?​

Answer 1

Answer:3

Step-by-step explanation:

if n=1, 1st term=3x1-1

                       =2

2nd term=3x2-1

              =5

so common difference, d=2nd term- 1st term

                                         =5-2

                                         =3