SOLUTION: if f(1)=5 f(n)=4f(n-1)+1 then what is the value of f(3)

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Question 1203768: if f(1)=5 f(n)=4f(n-1)+1 then what is the value of f(3)

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

if
f%281%29=5+
f%28n%29=4f%28n-1%29%2B1+
then what is the value of f%283%29

f%281%29=5+
f%282%29=4f%282-1%29%2B1+=4f%281%29%2B1=4%285%29%2B1=21
f%283%29=4f%283-1%29%2B1+=4f%282%29%2B1=4%2821%29%2B1=85