Question

19. ар
3n 2 - 1 wt is a2​

Answer 1

a2 = 11

Step-by-step explanation:

an = 3n^2 - 1

a1 = 3(1)^2 - 1 = 3-1 = 2

so, a2 = 3(2)^2 - 1 = 12 - 1 = 11