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Soit \(D=\{ (x,y) ; x\geq 0, y\geq 0, x^2+y^2\leq 1\}\). Calculer \(\displaystyle{\int \! \! \! \int _{D} (4-x^2-y^2)dxdy. }\)
Soit \(D=\{ (x,y) ; x\geq 0, y\geq 0, x^2+y^2\leq 1\}\). Calculer \(\displaystyle{\int \! \! \! \int _{D} (4-x^2-y^2)dxdy. }\)