A mathematical concept stating that a composite function is a function composed of two or more smaller simpler functions.

Consider: c(x) = (sin(x+5))3

This function can be broken down into several other elementary functions:
f(x) = x3
g(x) = sin(x)
h(x) = x + 5

So c(x) can be expressed as f(g(h(x)))

To find derivatives of composition functions you can use the chain rule.

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