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x-2-y-2-dxdy-D-x-4-y-4-1-




Question Number 194785 by tri26112004 last updated on 15/Jul/23
∫∫ x^2 +y^2  dxdy (D=x^4 +y^4 ≤1)
$$\int\int\:{x}^{\mathrm{2}} +{y}^{\mathrm{2}} \:{dxdy}\:\left({D}={x}^{\mathrm{4}} +{y}^{\mathrm{4}} \leqslant\mathrm{1}\right) \\ $$

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