For the function given below, find a formula for the Riemann sum obtained by dividing the interval [0,3] into n equal subintervals and using the right-hand endpoint for each c. Then take a limit of this sum as n - co to calculate the area under the curve over [0,3]. f ( x ) = x-+5 Write a formula for a Riemann sum for the function f(x) = x-+ 5 over the interval [0,3]. Sn =(Type an expression using n as the variable.)