Question

The demand function of a commodity is described by the exponential function
P=10.5e^-0.1q
where q is quantity demaded and TR=total revenue.
Determine(i) The quantity for which the total revenue is maximized

Answer 1

is it like this?

Answer 2

well if so you can do this



then take derivative and set it equal to 0
taking the derivative using product rule with respect to q gets you


so at quatity = 10 is when total rev is maximized