• 2022-07-23
    求下面方程组所确定的函数的导数或偏导数或全微分:[br][/br][tex=9.643x3.357]fnpmC2J6JmQBLyo5NmGAz53mVfHTw3lrPWlgeBlc/opwiKmPOFkS0NeMAtX1uaeCM+J9tQToOBLqn+IzZqbZZYeELKbPGHa7Ei4xsxbTn+IWaEDz27oX4xV9ehxQRWvlgwXv8U9NkoUj8TWLzK2cyg==[/tex]求[tex=1.286x2.071]V9fVXReHUrcmKJSTnoNlS4pPCcFzGX2BzyuRX+4Qz+ONExfXEdhUsft/qOY5isgS[/tex],[tex=1.286x2.071]V9fVXReHUrcmKJSTnoNlS9cRk/b7JOietG/SuQgrH932nWDpG06jgW5LvHOJx2aj[/tex];
  • 解  对[tex=0.571x1.286]XubEW9+1+hkJqH7jXe5MrA==[/tex]求偏导,得[tex=14.214x5.786]fnpmC2J6JmQBLyo5NmGAz3zWTmKm4z0W66Zu38OK1nVsPLVD3IRGAOsohxI5RfaKBXTiUZ1KnlLYQ5Uq2jxi2rW/r7lTyEtxhWNImlxw7aLoKbWQ9upqOgt96SnW9CFql7bBXGLW6TAtgX8MAVP0VHDOSXhofCorYdU3s7gr7lfTIWHFnz5ZXpN0qSHgLBZUEnl2K4c6WZ9zEOoaQLTfKTtCVzvxOvqIx+6nDUoL0/86Z3mhZRBfLSt4jX2vyJA10Q1/DpVhx+d20ERwKCEofGvyOUzwqpEH+iVrXMWF1UxcErSZCd9Sqy3KwPSQkiARr8rIVnE0pPAdyaprJGJVmJ9I/uxHoJ0J6N8FJ68aob+M0sUVyAV34oJj+9z8AmIf[/tex],则[tex=14.143x2.286]V9fVXReHUrcmKJSTnoNlS+UeOa20fvyFPhqUlsVsppzIQkS/D4KN0UaH5Pf/PGpr8IJv/fxl8HsLsx+Zq0ptz1YhQxFSw61YDYe45SKODc4AveWHcmBOxHKrd4Q0/Cn3p42PJ3CLW/NHqAzavkrQDArIKVofV8mklzDzEw3DhgjQIzMqfdJOwivgArlDDS1fkCPhhcChOCUNm7xEncFm8g==[/tex],[tex=14.143x2.286]V9fVXReHUrcmKJSTnoNlS4lM1uwJ+cflMIsIPBLC8LATCdtpTNrd1ZgrdErmj6z82s1eu+fP4XjXmB9uwyzCf+1VNNvSMgC6q2owQqE6TxBlKKLjUcnhx9fFQJzoLEEK3N3peQv/ldQM/cNPNIdRvOGy6DLGq3RE+mj20dkNGY13GV7tmx8g2KZBBrhEO5ZS[/tex]。

    举一反三

    内容

    • 0

      A=[1 2 3 4 5 6 7 8 9]A(5)=[]A=1 4 7 5 8 3 6 9

    • 1

      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}

    • 2

      下面语句的输出结果是?range(len('HelloWorld')) A: [1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11] B: 11 C: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] D: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]

    • 3

      当执行下面的语句定义一维数组a后,此数组的所有元素为 ( ) inta[10]; A.a[1],a[2],a[3],a[4],a[5],a[6],a[8],a[9],a[10],a[10] B.a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9] C.a[0],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],a[10] D.a[1],a[2],a [3],a[4],a [5],a [9],a [7],a [8],a [9],a [10],a [11]

    • 4

      接受语言{任何不是0开头的奇正整数的集合} 的 CFG文法为 ( ) A: S→J|ABJ, B→0B|AB|e, A→J|2|4|6|8, J→1|3|5|7|9 B: S→J|ABJ, B→0B|AB|e, A→J|0|2|4|6|8, J→1|3|5|7|9 C: S→J|ABJ, B→0B|AB, A→J|2|4|6|8, J→1|3|5|7|9 D: S→J|ABJ, B→0B|e, A→J|2|4|6|8, J→1|3|5|7|9