Integrate the function (1/θ)^2 e^((-x1-x2)/ θ)) from 0 to 2 ln 2- x2 (for dx1) and from 0 to 2 ln 2 (for dx2).
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A Definite Double Integral is calculated. The solution is detailed and well presented. The response was given a rating of "5" by the student who originally posted the question.