Double Integral Limits for a Sideways Rectangle

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SUMMARY

The discussion focuses on setting up double integral limits for a tilted rectangle defined by the vertices (1,0), (0,1), (2,3), and (3,2) while solving the integral of the function (ytan^-1(x) - 3). The problem involves using Green's theorem and transforming variables to u = y - x and v = y + x, resulting in integration limits of u from -1 to 1 and v from 1 to 5. Additionally, calculating the Jacobian is necessary for converting dxdy in this context.

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Homework Statement


I have to solve the integral of (ytan^-1(x) - 3) inside the area of the rectangle with vertices (1,0), (0,1), (2,3), (3,2). How do I set up these limits?


Homework Equations


This is a tilted rectangle so I can't use just values for the limits?


The Attempt at a Solution


This is a Green's theorem problem that started out as integral(tan^-1(x)dx + 3xdy). I just can't figure out the limits.
 
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The parallel lines through (1,0), (3,2) and (0,1),(2,3) are y= x-1 and y= x+ 1, respectively; both are variations on "y-x= constant". The parallel lines through (1,0),(0,1) and (3,2),(2,3) are y= 1-x and y= 5-x, respectively; both are of the form "y+ x= constant. Changing variable to u= y- x and v= y+ x gives an integral with limits of integration in u of -1 to 1 and in v, 1 to 5. Be sure to calculate the Jacobian to convert dxdy.

Have you already calculated the integration around the boundary?
 

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