Question

Which of the following sequences are in arithmetic progression?

2, 6, 10, 14, .....

Answer 1

2, 6, 10, 14, .....

d₁ = 6 – 2 = 4

d₂ = 10 – 6 = 4

d₃ = 14 – 10 = 4

Since d₁ = d₂ = d₃, the given sequence is in arithmetic progression.