Q. If f(1)=1 and f(n+1)=f(n)2+4 then find the value of f(3).Answer:
Given initial condition and formula: We are given the initial condition and the recursive formula for the function f:f(1)=1f(n+1)=f(n)2+4To find f(3), we first need to find f(2) using the recursive formula.Substitute n=1 into the recursive formula to find f(2).f(2)=f(1)2+4f(2)=12+4f(2)=1+4f(1)=10
Find f(2): Now that we have f(2), we can find f(3) using the recursive formula again.Substitute n=2 into the recursive formula to find f(3).f(3)=f(2)2+4f(3)=52+4f(3)=25+4f(3)=29
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