For the function given​ below, find a formula for the Riemann sum obtained by dividing the interval​ [a,b] into n equal subintervals and using the​ right-hand endpoint for each [tex]c_k[/tex]. Then take a limit of this sum as [tex]n[/tex]→∞ to calculate the area under the curve over​ [a,b].
[tex]f(x)=2x[/tex] over the interval [1,5]