# Chain rule on three functions

Solidify your understanding of the chain rule by practicing it on triple compositions.

### Problem

If F, left parenthesis, x, right parenthesis, equals, sine, start superscript, 2, end superscript, left parenthesis, 3, x, right parenthesis, what is a rule for F, space, prime, left parenthesis, x, right parenthesis?
Please choose from one of the following options.
Get 3 answers correct in a row