Evaluating dA for the Rectangular Region R

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SUMMARY

The discussion focuses on evaluating the differential area element dA for a rectangular region R defined by the limits 0 ≤ x ≤ 10ln7 and 25 ≤ y ≤ 50. The user initially struggles to interpret the problem but later clarifies that the task involves calculating the area of the rectangle using the formula A = width × height, resulting in A = 10ln(7) * 25. The confusion arose from the phrasing of the question, which was resolved once the complete context was visible.

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Homework Statement


Evaluate dA, where R is the rectangular region described in 0 ≤ x ≤ 10ln7 and 25 ≤ y ≤ 50


Homework Equations


dA = dxdy or dA = dydx


The Attempt at a Solution


I drew the rectangle on a Cartesian plane, but the problem is I don't know what the question is asking. I can set up a double integral with the limits they give me, but I don't understand how to calculate dA from any of the given information. Thanks for any clarity you can provide me.

Edit: Nevermind, it was Firefox not showing information about the question, I can solve it now that the full question is displayed.
 
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Yeah, so the wording doesn't make any sense. "Evaluate dA" as in calculate the area of the rectangle? is there a surface f(x,y) = z or something? because if there isn't this problem seems trivial. A = 10ln(7)*25.
 

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