6

[resilient]

If n is an integer, f(n) = f(n – 1) – n, and f(4) = 10. What is the value of f(6)?
a.-1
b.0
c.1
d.2
e.4


qa is a

[its_me07]

f(n)=f(n-1)-n
f(6)=f(6-1)-6
=f(5) - 6
=(f(5-1)-5)-6
=f(4)-11
=10 -11 As given f(4)=10
=-1

Hope this helps.