The ratio of integrals
∫〖a(x) b(x)dx〗/ ∫c(x) b(x)dx
can be maximized by choosing b(x) equal to the delta function at the point where a(x)/c(x) is a maximum.
Can anyone provide the solution for choosing b(x) when b(x) cannot equal the delta function, b(x) is greater than zero with a...