Hi could somebody please look through my answer to his homework assigment .
By using the chain-rule I get:
Does this look okay?
Sincerely and God bless,
1. Latex is currently down.
2. Use instead of
3. Your derivatives are a bit off.
Given z = sin(x + sin(t))
(del z)/(del x) = cos(x + sin(t)) *1
not cos(x + sin(1)).
This is the only error I saw, though you kept doing it consistently. So your other partials are wrong as well.