This might help explain how to do a very similar problem.... http://www.mathopenref.com/constbisectline.html
f(n) = f(n+1) +3
f(1) = f(2) +3
f(2) =f(3) +3
f(3) = f(4) +3
So f(1) = f(n) + 3* (n-1)
Put n=4 here so you found
f(1) = f(4) + 3* 3
= 22 +9
=31 ans
hope it helps
Answer:
20 30
Step-by-step explanation:
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Answer:
6
Step-by-step explanation:
