Question

Given An = 5a(n-1) where a1= 2. What are the first 4 terms

Answer 1

2, 10, 50, 250

Explanation:

Using the formula with a₁ = 2 , then

a₂ = 5a₁ = 5 × 2 = 10

a₃ = 5a₂ = 5 × 10 = 50

a₄ = 5a₃ = 5 × 50 = 250

The first 4 terms are 2, 10, 50, 250