To express: The function in the form of .
The function can be expressed as where and .
The composite function is .
Name the expression as .
It can be expressed as as is a composition of f and g.
Replace by t to obtain the expression for .
Hence, it can be concluded that can be expressed as where and .
The composite function is defined as follows.
Substitute for x in .
Thus, it is verified that can be expressed as where and .
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