naishaboyd671 naishaboyd671 07-02-2024 Mathematics contestada Suppose f:R→(0,[infinity]) be a differentiable function such that 5f(x+y)=f(x)⋅f(y),∀x,y∈R. If f(3)=320, then 5Σ f(n) is equaln=0a. 6575b. 6825c. 6875d. 6525