Since this can be thought of as function composition you will sometimes see it called the inside function or first function.

]]>You're welcome.

]]>Is there a proper name for the interior part of a trigonometric function or is it simply called the inner function, or something to that effect? I have looked around online for an answer but I can't seem to find anything.

For example, the function

does g(x) have a proper term or name? Or is it just "the inner function"?

Thank you very much.

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