Consider the transformation
[math]

A. Compute the Jacobian:

[math]

B. The transformation is linear, which implies that it transforms lines into
lines. Thus, it transforms the square [math]

T(65, 65) = (

T(-65, 65) = (

T(-65, -65) = (

T(65, -65) = (

C. Use the transformation [math]

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