Answer:
[tex]f(2)=22[/tex]
[tex]f(3)=48.4[/tex]
[tex]f(4)=106.48[/tex]
Step-by-step explanation:
The given function is defined recursively by;
[tex]f(1)=10[/tex]
[tex]f(n)=2.2\times f(n-1)[/tex]
When n=2,
[tex]f(2)=2.2\times f(2-1)[/tex]
[tex]f(2)=2.2\times f(1)[/tex]
[tex]f(2)=2.2\times 10[/tex]
[tex]f(2)=22[/tex]
When n=3,
[tex]f(3)=2.2\times f(3-1)[/tex]
[tex]f(3)=2.2\times f(2)[/tex]
[tex]f(3)=2.2\times 22[/tex]
[tex]f(3)=48.4[/tex]
When n=4,
[tex]f(3)=2.2\times f(4-1)[/tex]
[tex]f(4)=2.2\times f(3)[/tex]
[tex]f(4)=2.2\times 48.4[/tex]
[tex]f(4)=106.48[/tex]