This is honestly the sixth try, not all on here, that I have tried to get an explanation that I can understand for

Find the approximate area under the curve by dividing the intervals into nsubintervals and then adding up the areas of the inscribed rectangles. Theheight of each rectangle may be found by evaluating the function for eachvalue of x. Your instructor will assign you n1 and n2.y = 2xx2 + 1 between x = 0 and x = 6 for niand n2.Find the exact area under the curve using integration y = 2x vx2 + 1between x = 0 and x = 6Explain the reason for the difference in your answers.