Question

A sequence is defined recursively by the formula F (n+1)=-2f(n). The 1st term of the sequence is -1.5. What is the next term in the sequence

Answer 1

F(2)=3

Explanation:

The first term is -1.5= f(1).

So F(1+1)=-2*f(1)= (-1.5)*(-2)=3