Write the first 4 terms of each sequence whose general term

Question

1) Write the first 4 terms of each sequence whose general term is given.

i. a_n = 2n/n+4

ii. a_n = 3n/n+5

iii. a_n = (-1)ⁿ⁺¹/2ⁿ-1

iv. a_n = (-1)ⁿ⁺¹/2ⁿ+1

2) The sequences below are defined using recursion formulas. Write the first 4 terms of each sequence.

i. a₁ = 7 and a_n = a_n-1 + 5 for n ≥ 2

ii. a₁ = 12 and a_n = a_n-1 + 4 for n ≥ 2

iii. a₁ = 3 and a_n = 4a_n-1  for n ≥ 2