If z = f(x) g(y), find dz/dt in terms of dy/dt and dx/dt. (without implicit differentiation)
If z = f(x) g(y), find dz/dt in terms of dy/dt and dx/dt. (without implicit differentiation) If $z=text{f}left( x right)text{g}left( y right)$, where $x$ and $y$ each vary with time