1. Estimate the volume of the solid that lies below the surface z = xy and above the rectangle R = {(x,y) | 0 ≤ x ≤ 6, 0 ≤ y ≤ 4}. (a) using Riemann sum with m = 3, n = 2, and take the sample point to be the upper the right corner of each square (b) using midpoint rule with the same values of m and n in problem (a).

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Q: #18 &amp; #19

A: 18. Area under the graph is the integral of the function over the given interval.

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Q: 1. Use a Riemann sum with m = 3 andn = 2 to estimate the value of (x+ 2y) dA where %3D R= [0, 6] ×…

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Q: Problem 13  The volume of the solid obtained by rotating the region bounded by x=(y^2), x=5y  about…

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Q: 1. Use a Riemann sum with m = 3 and n = 2 to estimate the value of (x + 2y) dA where %3D R= [0,6] ×…

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Q: Sea 1. Use a Riemann sum with m = 3 and n = 2 to estimate the value of (x+ 2y) dA where R R= [0, 6]…

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A: topic - critical points of functions