Question

Write the first four terms in the following sequences. A(n+1)=1/2 A(n) for n≥1 and A(1)=4 .

Answer 1

4,2,1 and 1/2

Explanation:

The first term is 4 since A(1)=4

● A(2) = (1/2)*A(1) = (1/2)*4 = 2

So the second term is 2

● A(3) = (1/2)*A(2) = (1/2)*2= 1

The third term is 1

●A(4) = (1/2)*A(3) = (1/2) *1 = 1