Basic Question: (i) e^2x . (e^x - e^-x) I did: = Product Rule = 2e^2x . (e^x + e^-x) + e^2x . (e^x + e^-x) = (2x^2x + e^2x) + (e^x + e^-x) = 3x^2x + ? Hmm, answers say 3e^3x - e^x Thanks in adv.