Question

Write the first five terms of the sequence described by the recursive formula f(1)=2,f(x)=f(x-1)*4

Answer 1

2,8,32,128,512

Explanation:

f(x)=f(x-1)*4

f(1)=2

f(2)=f(2-1)*4=f(1)*4=2*4=8

f(3)=f(3-1)*4=f(2)*4=8*4=32

f(4)=f(4-1)*4=f(3)*4=32*4=128

f(5)=f(5-1)*4=f(4)*4=128*4=512