要求被积函数为{(x+y)*ln(1+x/y)}/(1-x-y)^(1/2)然后几分区域为D:x+y=1与x,y轴围成的三角形区域
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![要求被积函数为{(x+y)*ln(1+x/y)}/(1-x-y)^(1/2)然后几分区域为D:x+y=1与x,y轴围成的三角形区域](/uploads/image/z/8924593-49-3.jpg?t=%E8%A6%81%E6%B1%82%E8%A2%AB%E7%A7%AF%E5%87%BD%E6%95%B0%E4%B8%BA%7B%EF%BC%88x%2By%EF%BC%89%2Aln%EF%BC%881%2Bx%2Fy%EF%BC%89%7D%2F%281-x-y%29%5E%EF%BC%881%2F2%EF%BC%89%E7%84%B6%E5%90%8E%E5%87%A0%E5%88%86%E5%8C%BA%E5%9F%9F%E4%B8%BAD%EF%BC%9Ax%2By%3D1%E4%B8%8Ex%2Cy%E8%BD%B4%E5%9B%B4%E6%88%90%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%E5%8C%BA%E5%9F%9F)
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