Identifier: Product Rule Derivative

If you look down at your problem and primary operation you see is two pieces being multiplied by each other, then the product ruleis what you will want to use.

I like to think about these in terms of shapes.

If your problem has this general shape to it, (something)times(something), then the primary rule is the product rule.

$y=\left(\mathit{SOMETHING}\right)\mathit{\bullet }\left(\mathit{SOMETHING}\right)=\mathrm{(}f\mathrm{)}\mathit{\bullet }\mathrm{(}g\mathrm{)}$