Question

Solve with explanation​

Answer 1

First four terms including the first term

11, 2, -7, - 16

First four terms not including the first term:
2, -7, - 16, -25

Explanation:

We have the following given:

First term a₁ = 11

nth term aₙ = aₙ₋₁ - 9 for n≥ 2

a₂ = a₁ - 9 = 11 - 9 = 2

a₃ = a₂ - 9 = 2 - 9 = -7

a₄ = a₃ - 9 = -7 - 9 = -16

a₅ = a₄ - 9 = -16 - 9 = -25