举一反三
- 设[tex=2.571x1.357]swgG+fbKeBDkV392c1yLvwn7AbP0IJ3jaRWA7VIW+oY=[/tex]是分配格,对于任意[tex=3.5x1.214]ZcY7qu5Nv8mx7HQtL5txfA==[/tex],若[tex=4.5x1.143]ZBDGSPFtRnStkCKr2bFpNw==[/tex],则[tex=1.786x1.0]8YJZrMwcUdKQdYqa0pq/5g==[/tex]。
- 设[tex=2.571x1.357]swgG+fbKeBDkV392c1yLvwn7AbP0IJ3jaRWA7VIW+oY=[/tex]是格,对于任意[tex=3.5x1.214]KP32jHpwVA/ChU/BPW2kfg==[/tex]有[tex=6.5x1.357]khzl0fT9H6aGrcyLL0hz2Y2P0sHov5ODN2o/EkLJjLkZKABXAlFhLATF9csNRbgy[/tex]。
- 设[tex=2.571x1.357]swgG+fbKeBDkV392c1yLvwn7AbP0IJ3jaRWA7VIW+oY=[/tex]是格,对于任意[tex=3.5x1.214]KP32jHpwVA/ChU/BPW2kfg==[/tex]有[tex=9.143x1.357]dk2T/fDp+oxBH37nMt1efAwszbRlFicMz73t1cgEaT/eS1MQunWFfd17k1VMOF42TwldAsyMgakFJ8deQUBwqA==[/tex]。
- 判断下列命题是否为真:(1)[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex](2)[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex](3)[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex](4)[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex](5)[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex](6)[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex](7)若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex],则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex](8)若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex],则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]
- 6个顶点11条边的所有非同构的连通的简单非平面图有[tex=2.143x2.429]iP+B62/T05A6ZTM0eeaWiQ==[/tex]个,其中有[tex=2.143x2.429]ndZSw3zT0QTOVLVdoUto1Q==[/tex]个含子图[tex=1.786x1.286]J+vVZa2YaMpc6mJBbqVvWw==[/tex],有[tex=2.143x2.429]lmhx48evnQMhi03NovPXig==[/tex]个含与[tex=1.214x1.214]kFXZ1uR8GjycbJx+Ts2kyQ==[/tex]同胚的子图。供选择的答案[tex=3.071x1.214]3KinXFh3SXhZ7nIe1y9KEV6aadxhhJWeEy6Dij1iObdMUZkY6ZA5J2dVVjPSuhEf[/tex]:(1) 1 ;(2) 2 ;(3) 3 ; (4) 4 ;(5) 5 ;(6) 6 ; (7) 7 ; (8) 8 。
内容
- 0
设[tex=2.571x1.357]swgG+fbKeBDkV392c1yLvwn7AbP0IJ3jaRWA7VIW+oY=[/tex]是格,对于任意[tex=2.714x1.214]Pz9OQ44WQx3wVKEpY1ZcLQ==[/tex]有[tex=4.857x1.357]i8jpVPumd5ZqFN/uelljUQ==[/tex]。
- 1
若:(1)函数 f(x)在点[tex=3.714x1.357]7VByCIzkNySq3s2l9I6f5zccNJDeV+6SQrVr3iwjgB0=[/tex]有导数,而函数g(x)在点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]没有导数;(2)函数f(x)在点[tex=3.714x1.357]7VByCIzkNySq3s2l9I6f5zccNJDeV+6SQrVr3iwjgB0=[/tex]没有导数,而函数g(x)在点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]有导数;(3)函数f(x)在点[tex=3.714x1.357]7VByCIzkNySq3s2l9I6f5zccNJDeV+6SQrVr3iwjgB0=[/tex]没有导数及函数g(x)在点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]没有导数,则函数[tex=5.643x1.357]GmtX7Vop79exGU/rpqXUYw==[/tex]在已知点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]的可微性怎样?
- 2
已知[tex=10.786x1.357]oPxEQGciaJq0uWonaJqXssvTKx2aAMqoshLd51U2O4M=[/tex],若[tex=2.0x1.214]IENxQEh5u4RdnCaqHm72Xg==[/tex]相互独立,则[tex=3.0x1.357]cl60lRnHnAb2Fyha9FYNvw==[/tex] A: 1/2 B: 1/3 C: 2/3 D: 3/4
- 3
设[tex=5.214x1.214]l2vYijvwphpA0Bdo8olvNhKvOVd4RCELKut0jj6S5qs=[/tex]是连续映射,Y是Hausdorff空间,证明:(1)集合[tex=9.357x1.357]QCqopxinhs+TvVYgLw48vVpO4x/Rie4gzAlmw62rJGM=[/tex]是X的闭子集;(2)如果A是X的稠密子集且[tex=3.714x1.357]fo4X83uQk0aLKgSpBjpSMw8oj58YdJ5bCiu5d4gfWQqZvgjwV7CYEcyqXJHmRmoq[/tex],则f=g。
- 4
设随机变量X服从[tex=2.571x1.357]Gjkz0t1jZJmf50PjLB7c8A==[/tex]上的均匀分布,求[tex=3.929x1.357]wrselhhEmRtATAwznD/HKQ==[/tex]