Answer:
3, 12, 48, 192
Step-by-step explanation:
To find the first 4 terms substitute n = 2, 3, 4 into the recursive formula, that is
a₂ = 4a₁ = 4 × 3 = 12
a₃ = 4a₂ = 4 × 12 = 48
a4 = 4a₃ = 4 × 48 = 192
Thus the first 4 terms of the sequence are 3, 12, 48, 192
