## Study23 Group Title $$\ \large \frac{dy}{dx} e^{-x}+xe^{-x}$$ ? one year ago one year ago

1. waterineyes Group Title

Is this derivative with first term only??

2. henpen Group Title

That's not an equation, it's an expression and so in this state is useless

3. waterineyes Group Title

It is totally useful: $-e^{-x} +x \cdot e^{-x} \implies e^{-x}(x-1)$

4. henpen Group Title

Only if you've got the problem.