Use transformation to evaluate

bappy351

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2. Use transformation to evaluate \(\iint_R \sin\frac{1}{2}(x-y)\cos\frac{1}{2}(x+y)\;dA\) over the triangular region R whose vertices are (0,0), (1,1) and (0,2).
 
Are you actually sitting for your exam, right now?
No way, I'm just struggling with my assignment. There was 50+ maths to do but there were 6 problem my teacher came up with by himself and I have no Idea how to even start these. I'm not very comfortable with advanced calculus..
 
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