SOLUTION: Given f(x) = tan(x) + 1 and g(x) = x^3 find f(g(g(x)))

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Question 1170215: Given f(x) = tan(x) + 1 and g(x) = x^3
find f(g(g(x)))

Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
f%28red%28g%28green%28g%28x%29%5E%22%22%29%5E%22%22%29%29%5E%22%22%29

First we replace the green g(x) by the right side of g(x), which is x3:

f%28red%28g%28green%28x%5E3%29%5E%22%22%29%29%5E%22%22%29

Next we must find red%28g%28green%28x%5E3%29%5E%22%22%29%29, which means to substitute
x3 for x in the right side of g(x), which is also x3, so we get %28x%5E3%29%5E3 which is x%5E9

So red%28g%28green%28x%5E3%29%5E%22%22%29%29=x%5E9

So we substitute x9 for red%28g%28green%28x%5E3%29%5E%22%22%29%29 in
f%28red%28g%28green%28x%5E3%29%5E%22%22%29%29%5E%22%22%29 and get
f%28red%28x%5E9%29%29

That means to substitute x9 for x in the right side of f(x), which
is tan(x) + 1, so the final answer is:

tan%28x%5E9%29%2B1
 
Edwin