Question

2 , 5 , 8 .......... n ( n = ? ) ??​

Answer 1

Step-by-step explanation:

first term a= 2

common difference d= 5-2=3

an = a + (n - 1) d

an = 2 + (n -1) 3

an = 2 + 3n - 3

an = 3n - 1