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Surface integral
Calculus
Level 4
Find \(\displaystyle \iint\limits_R \dfrac{\mathrm{d}S}{(x^2+y^2)^2}\), where \(R=\{(x,y) \in \mathbb{R}^2 \mid x^2+y^2 \leq 1 , x+y \geq 1\}\).
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Excel in math and science
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