lim(x+y)cos(1/(x^2+y^2))且x,y趋于0
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/19 20:19:49
x)ըЮL/0ר3Ү3|cJNmOv$RΆSgӷ }6Q<31
t
]çz~9}˳/z>lN=O>AɎg3?z`^4 ]4@6l).H̳y (
lim(x+y)cos(1/(x^2+y^2))且x,y趋于0
lim(x+y)cos(1/(x^2+y^2))且x,y趋于0
lim(x+y)cos(1/(x^2+y^2))且x,y趋于0
x,y趋于0时,1/(x^2+y^2)→∞,则cos(1/(x^2+y^2))为在-1和1之间振荡的有界函数,不是无穷.
而x+y→0,
故
lim(x+y)cos(1/(x^2+y^2))=0
lim(x+y)cos(1/(x^2+y^2))且x,y趋于0
lim[1-cos(x^2+y^2)/(x^2+y^2)x^2y^2](x,y都是趋近于0的
(lim) x/(x-y)
lim(x,y)趋近于(0,0)[1-cos(x^2+y^2)]/(x^2+y^2)expx^2y^2=?
求二元函数极限 x→0,y→0,lim [(x+y)sin(1/x)cos(1/y)]
lim(x,y)趋向于(2,0)时 (1-cos(x^2+y^2)^(1/2))/(x^2+y^2)
求极限x趋于0 y趋于1时,lim(1-cos(x^2+y^2))/(x^2+y^2)
求极限x趋于0 y趋于0时,lim(1-cos(x^2+y^2))/(x^2+y^2)
求极限:1)x趋于0,y趋于1时,lim(1-xy)/(x^2+y^2)2)x、y趋于0时,lim1-cos根号(x^2+y^2)/(x^2+y^2);3)x、y趋于0时,limx/(x+y)2)题中的lim1-cos根号(x^2+y^2)是连在一起的最后才除以(x^2+y^2);
lim(x,y)→(0,0)[1-cos(x²+y²)]/(x²+y²)e的x²y²
lim(x→0y→1)(1+xe^y)^(2y+x/x)求极限
lim(x,y)->(0,2)(1-3xy)^2/x
(lim) x/x-y=
y=lim (x → 0) ( √1+xsinx - √cosx) / arcsin^2x.y=lim (n → ∞) cos^2n (arctanx).y=lim (x → 0) ( √1+xsinx - √cosx) / arcsin^2x.y=lim (n → ∞) cos^2n (arctanx).y=lim (cos2x)^(1+cot^2x) (这道题用ln公式做,我想知道用的哪
求极限lim(x,y)→(0,0) [1-cos(xy)]/xy^2求极限lim(x,y)→(0,0) [1-cos(xy)]/xy^2,麻烦写下过程
y=(cos x-2)/(cos x-1)的值域
求极限lim(x,y)→(0,0) [1-cos(xy)]/xy^2.求极限lim(x,y)→(0,0) [1-cos(xy)]/xy^2,麻烦写下过程
lim(x,y)趋向于(无穷,a) (1+1/x)^(x^2/(x+y))answer:e