Let
f(x) = x^2 - 4 if x < 7
f(x) = x + 13 if x >= 7
What is f(f(f(17)))?
Hello Guest!
\(f(17)=17+13=30\\ f(f(17))=f(30)=30+13=43\\ {\color{blue}f(f(f(17)))=}f(43)=43+13=\color{blue}56\)
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