Please i need answers of :

B).

C).

D)

3. Find f(2),f(3),f(4), and f(5) if f is defined recursively by f(0)=1,f(1)=2, and for n=1,2, a) f(n+1)=f(n)+3f(n1). b) f(n+1)=f(n)2f(n1). c) f(n+1)=3f(n)24f(n1)2. d) f(n+1)=f(n1)/f(n)