• 2022-06-16
     求  [tex=12.286x2.786]KRfj3G10JzzkQZWmVgXDF9EZdpAa7MWguoqzZoa4CjVdobwUJaO26Yr1WGW7HS9qobjkDTwK8k8DgT6+bu7cng==[/tex] 其中 [tex=19.429x3.357]72YwY1v17IOM9Fxyttt1lwSAfdMVZb6GixiTExHJzAApiPZDsJD/o7UYj6Nt4mpWpA9csqCt4xwi+tVGfOb0KJWAr4Zu4siBs8FeCv5jgPUn4JuXULaRLdUhSE/Ixv30vPUqUWY69qZIzS0SSYx9ZPd6+nVnqIHDY3oyws1otXA5O3vbNWrEhKllzH+m2kK7[/tex]
  •  答  [tex=15.714x4.071]RopFfc9kdhcoVSbrdmo7E98BG2RVTRzyAZSk0w1gJUZw6Wpwzir3Za05kdHYYA2wmi5Ao2Cdg709kZ+uSbApkOmxd0cTntFFQwGgGLHz8mEMSQhZ68V6nIZ2a5YqAC+m9bxZ9NeiqK/faVRgSUijXzxTS+zbXoAov+BRBXwVNcxe4RJiLpM2XwyCHZ26iPSEl96tMOTuL3v2nTjCwY0PUw==[/tex]当 [tex=3.643x1.571]lGZ9mCGsQZmMJEwQNkB6WJgn/kyhtXD/lOU+yHu55Yg=[/tex] 时,平面 [tex=4.286x1.143]jkuoeUpr89mDsnRvZpLE3A==[/tex] 与球面[tex=5.643x1.429]JfMnpkdfUBckNje06oWbk/BDZAzHaBBEbyZO6OqX4As=[/tex] 相切或不相交,这时总有[p=align:center][tex=10.571x2.786]ToBrJjeBvc4E5c0UcTu7wcTe3RHRh/SdRVhTTFvXgiAnQhvzE5flxWy8cXHC5Fr+[/tex]故考虑 [tex=3.643x1.571]+uTiDo0lyIB66XB+NVMkyA==[/tex] 的情况. 此时[tex=13.786x1.643]Aw9ZmbJksZ/H4+MQaHf7p9SCAgem07NVC4MeNn/PNRW//QNyxSYbWm0RB2vZ4bKTlGPlFNFbP1NKjTNF144Jng==[/tex] 是球体 [tex=7.071x1.429]JfMnpkdfUBckNje06oWbk8btRCxYcnrAfPw+DunIJtA=[/tex] 与平面 [tex=4.286x1.143]jkuoeUpr89mDsnRvZpLE3A==[/tex] 所交成的圆域上的任一点[tex=3.214x1.357]8sXOVKPrSl7odQ08YRvxPw==[/tex] 到原点的距离。积分域就是此圆域,此圆域到原点的距离为 [tex=2.143x2.714]c1BevkM3LdZaCkYnwQyVOLWsFGQOiv3xes7JaXxUk5I=[/tex] 由对称性,可以将此坐标系作一旋转,使平面 [tex=4.286x1.143]jkuoeUpr89mDsnRvZpLE3A==[/tex] 上的积分域旋转到 [tex=3.071x2.714]YpEliVdFvsVGuGnA/T2tSDwkpS1IxadX9xZZnLEl5SQ=[/tex] 这一平面上. 则[p=align:center][tex=27.286x3.071]zjJz4YGt+a2b1JTa1qbhJe81H6h3yZ/HuGedNWmAOGsRVEo9U5MhdhYM1Hhh9t7SoG1uFOnwWmcTxyGrfaQWX9OXy2gAu3iG7JbnQjQU8Kwbr2djxEvfDw7Mm1vowm9Z7TW4JxX+YbKx9zj7I3WSeVehnu8GJYm0nIqfwfxWYhUBVr5I5eh7vA2Q6wvGjznXa61DabYKjGe52hYOG8De80LyBJy/BMOc8IQTLIQcvK8=[/tex][tex=22.071x3.357]G/Wy4EE2PsKZZzni3mPXaiwiFjUAyl+R9DKdvuQ17RJz5594oOR5E0b82v1Q/V+eT/iEp7XFTH01MZKBps5GC197zB38lASoWhzb4iM3uzVI4WdtAAZ0TzXIoMj/j2IVc3/1t4x00kJnNndK3Y4sY9SZ+6DMxGTRcduiWmTwvKx9wh1sJgfolJuKXs9mmtIdtsh9Zj4+YQH6zFYzmGUarF0zhszEHO2wk2G7q2YWaBQ=[/tex]所以[p=align:center][tex=15.714x4.071]RopFfc9kdhcoVSbrdmo7E98BG2RVTRzyAZSk0w1gJUZw6Wpwzir3Za05kdHYYA2wmi5Ao2Cdg709kZ+uSbApkOmxd0cTntFFQwGgGLHz8mEMSQhZ68V6nIZ2a5YqAC+m9bxZ9NeiqK/faVRgSUijXzxTS+zbXoAov+BRBXwVNcxe4RJiLpM2XwyCHZ26iPSEl96tMOTuL3v2nTjCwY0PUw==[/tex]

    举一反三

    内容

    • 0

      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}

    • 1

      输出九九乘法表。 1*1=1 2*1=2 2*2=4 3*1=3 3*2=6 3*3=9 4*1=4 4*2=8 4*3=12 4*4=16 5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 9*1=9

    • 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

      【单选题】myarray1=np.arange(15) myarray2=myarray1.reshape(5,3) print( myarray1) print(myarray2) 输出值是? A. [ 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15] [[ 0  1  2] [ 3  4  5] [ 6  7  8] [ 9 10 11] [12 13 14]] B. [ 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15] [[ 1  2  3] [ 4  5  6] [ 7  8  9] [10 11 12] [13 14 15]] C. [ 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14] [[ 0  1  2] [ 3  4  5] [ 6  7  8] [ 9 10 11] [12 13 14]] D. [ 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14] [[ 1  2  3] [ 4  5  6] [ 7  8  9] [10 11 12] [13 14 15]]

    • 4

      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]