Answer:
[tex] a_n = 2n [/tex]
Step-by-step explanation:
Given sequence is: 2, 4, 6, 8,.....
Here, a = 2, d = 4 - 2 = 2
To find: [tex] a_n[/tex]
[tex]a_n = a + (n - 1)d \\ \\ \therefore \: a_n = 2 + (n - 1)2\\ \\\therefore \: a_n = 2 + 2n -2\\ \\\therefore \: a_n = 2n \\ \\[/tex]
