Question: Consider the integral - 1 1 | x | - 1 1 - | x | c o s ( x + y ) e

Consider the integral
-11|x|-11-|x|cos(x+y)ex-ydydx
Sketch the domain of integration D.
Find a linear transformation that maps [-1,1][-1,1] onto D.
Use this linear transform and the change of variable formula, to re-write the integral above as an integral over [-1,1][-1,1]. Evaluate the resulting integral.
Consider the integral - 1 1 | x | - 1 1 - | x | c

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