Originally Posted by Jameson
Rewrite as:
Now differentiate wrt x.
RonL
1. It is a linear form in and so differentiable wrt .Originally Posted by ThePerfectHacker
2. If and are differentiable then this is differentiable. Asking the
question implies we may assume that and are differentiable, just
as it allows us to assume that denotes the derivative.
RonL