求极限 lim x→0 y→0[x^2+y^2+5/x+y sin(x+y)] 不懂极限,
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求极限 lim x→0 y→0[x^2+y^2+5/x+y sin(x+y)] 不懂极限,
lim[ x→0 y→0][x^2+y^2+5/(x+y) sin(x+y)]
=lim[ x→0 y→0][x^2+y^2]+5lim[ x→0 y→0]sin(x+y)/(x+y)]
=5
=lim[ x→0 y→0][x^2+y^2]+5lim[ x→0 y→0]sin(x+y)/(x+y)]
=5
求极限 lim x→0 y→0[x^2+y^2+5/x+y sin(x+y)] 不懂极限,
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