Riemann Sum Area and Formula

Question

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 c_k. Then take a limit of this sum as n → ∞

to calculate the area under the curve over​ [a,b].

​f(x)=26x²+26x³ over the interval [-1,0]

Find a formula for the Riemann sum?

Calculate area?

Answer 1

Visit this Desmos graph and use the slider on n to increase the number of rectangles:

desmos.com/calculator/p4nuah0q0k