1 w+3 (a) Estimate the area under the graph of the function f (as) : from 2: : 0 to a: : 4 using a Riemann sum with n : 10 subintervals and right endpoints. Round your answer to four decimal places. area = Number (b) Estimate the area under the graph of the function f (as) : 1 from m : 0 to a: : 4 using a Riemann sum with n : 10 subintervals and left ac+3 endpoints. Round your answer to four decimal places. area : Number