If f(1)=10f(1)=10 and f(n)=nf(n-1)+5f(n)=nf(n−1)+5 then find the value of f(5)

Question

i dont know how to this

Answer 1

f(1)=10

f(n)=nf(n-1)+5

f(2)=2f(1)+5=2*10+5=25

f(3)=3f(2)+5=3*25+5=75+5=80

f(4)=4f(3)+5=4*80+5=320+5=325

f(5)=5f(4)+5=5*325+5=1625+5=1630

Answer 2

I don’t either. I think you’ve copied the problem inaccurately. If the problem is

f(1) = 10

f(n) = nf(n-1)

and we want to know f(5), then I can help you. Update the question and we can look again.