Question

Use the iterative formula below to work out the

value of x3, starting with ₁
=
Xn+1 = 3xn −5
-
4.

Answer 1

x₃ = 16

Explanation:

using the iterative formula
`x_(n+1)` = 3
`x_(n)` - 5 with x₁ = 4 , then

x₂ = 3x₁ - 5 = 3(4) - 5 = 12 - 5 = 7

x₃ = 3x₂ - 5 = 3(7) - 5 = 21 - 5 = 16