I've tried fiddling with this but I'm getting no where. If and are two differentiable functions of , and , show that .
Last edited by chella182; Nov 15th 2009 at 06:49 AM.
Reason: Editing spelling mistakes in title
Follow Math Help Forum on Facebook and Google+
What happens when you apply the Product Rule on each of the three components?
Ahh I see it now, cheers.
View Tag Cloud