We have #f(n)# an string;#ninNN# such that #f(n+1)-f(n)=3f(n)# and #f(0)=-1/2#.How to express #f(n)# according to #n#?
1 Answer
Jun 28, 2017
Explanation:
Making
This is a homogeneous linear difference equation with generic solution
Substituting we have