设[tex=1.357x1.286]qEZuwIt9KVd4ZakwLQmmFg==[/tex],[tex=1.357x1.286]UL/h/oqgDFCeRk9xe+8aYQ==[/tex]为[tex=0.857x1.286]ZpwhzmyivskaH5M1X7ozaQ==[/tex]的两个子空间,且[tex=8.643x1.214]79Wd/JsaQKi3RBB3vwr835puNx0R+hEsqICwduut9W7Ga/O5+v1mIuVQoSJw14yIHTfQbi2VER3GQSncwQ2hTA==[/tex]。证明:存在线性变换[tex=0.857x1.0]RIwvPDbuSt4HWDoPsJIiNQ==[/tex],使[tex=4.714x1.214]79Wd/JsaQKi3RBB3vwr8304iWeeyN5oM/4rWSyDZPACnLJ64uoGmeIVZxDnYte7N[/tex],[tex=4.286x1.214]FS7OZA/QB7C+VSLfh3qSHkaAKENhZHDE0+z+82CGpmHjpLk/B+Zdi/5jYoWN2SXi[/tex]。
举一反三
- 设[tex=1.357x1.286]qEZuwIt9KVd4ZakwLQmmFg==[/tex],[tex=1.357x1.286]UL/h/oqgDFCeRk9xe+8aYQ==[/tex]是线性空间[tex=0.857x1.286]ZpwhzmyivskaH5M1X7ozaQ==[/tex]的子空间,证明以下三个论断是等价的:(1)[tex=4.0x1.286]BocJVi7347iJvnzWaMLSJtOugYH/AKrTd++ihwbtZho=[/tex];(2)[tex=6.429x1.286]CodcfJC5l11u2QacfGTUTnorQzdMBLqMj4WTq4MpZJ8=[/tex];(3)[tex=6.5x1.286]x5kbo66A1AfBD/R6bU0OYHV3Jzin22t7W+aWxBJddEE=[/tex]。
- 设[tex=0.857x1.0]RIwvPDbuSt4HWDoPsJIiNQ==[/tex]为[tex=0.643x1.286]ZsZs11iKEvfmzDIurZth8g==[/tex]维向量空间的线性变换,[tex=1.0x1.286]FQCty1oDljUrciYr/EgSOA==[/tex],[tex=1.0x1.286]Y//LTBZVoC62W4jnTxjo3w==[/tex]为[tex=0.857x1.286]ZpwhzmyivskaH5M1X7ozaQ==[/tex]两个线性子空间。证明:如果[tex=6.357x1.214]79Wd/JsaQKi3RBB3vwr8304iWeeyN5oM/4rWSyDZPAAsnzTTv6SnNlFoG43nly5YeoJoNf0NIbIKI72lLYoAAg==[/tex],则存在线性变换[tex=1.214x1.214]6IZIK8PFueAWRBm6DPIGkwocpMVF+Iu3u3WNxpBxLCg=[/tex],[tex=1.214x1.214]+9zj08zYkjZ1AMUGplS+zHdldHUYVWJGk++xhKOIn3Q=[/tex],使[tex=5.214x1.214]lRH8ipEtddswal17Qs6h3CWdC//t2tteBdEVebjRDhqvgLejcab2uVirNE7wMymWTEN3CAxIS/2hslTOepiQUQ==[/tex],[tex=5.214x1.214]PX4zwKuSAlqAfjlv+Mw9oeF5Q81KUvMV/bB1DtuiaZjo8eqWfBj30uXmyTUr4OJ4CjkpuRaRaMp7Zz2r70eJAg==[/tex],且[tex=4.714x1.214]CmAnDYdFbTdGenyJbSjUKOdmW4VioZL3X58UpLFCnsGRPoH0Y3sMNxG4hLB53iYq[/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 。
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- set1 = {x for x in range(10) if x%2!=0} print(set1) 以上代码的运行结果为? A: {1, 3, 5, 7, 9} B: {1, 3, 5, 7} C: {3, 5, 7, 9} D: {3, 5, 7}