If f(f(n))+f(n)=2n+3 and f(0)=1, what is the value of
f(2012)?
a) 2011
b) 2012
c) 2013
d) 4095

• simplify the equation to
  f(f(n))=2n+3-f(n)
  substitute various values of n we get
  f(0)=1
  f(1)=2 n so on...
  in general
  f(n)=n+1
  hence f(2012)=2013
• 11 years agoHelpfull: Yes(17) No(2)
• f(0)=1
  f(1)=2
  ...
  f(2012)=2013
• 11 years agoHelpfull: Yes(9) No(2)
• f(f(n))+f(n)=2n+3 and f(0)=1
  f(f(0))+f(0)=3
  f(1)=2.similarly f(2)=3,f(3)=4,etc....
  f(f(2011))+f(2011)=4025
  f(2012)+2012=4025
  f(2012)=4025-2012
  f(2012)=2013
• 11 years agoHelpfull: Yes(1) No(0)