Practice problem
What is the derivative of xe−xxe^{-x}xe−x
e−x−xe−xe^{-x}-xe^{-x}e−x−xe−x
e−x+xe−xe^{-x}+xe^{-x}e−x+xe−x
xe−xxe^{-x}xe−x
e−xe^{-x}e−x
Type a concept, like “slope” or “photosynthesis”.