求下列曲线[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]绕给定坐标轴旋转一周得到的旋转曲面的方程:[tex=7.714x3.357]tS57oNKZfqoVB2b/pWUo0RqNsLiCWRlImMAF/mCDX2+kd1ihhg+0MBH8dM5F5lIwRO7BcRjvmsk7mI1OmQyNrDbwA8foFS7y771fGup8x98=[/tex][tex=4.214x1.214]7qgAui7Icry9Q1NpdZWWb8fZkBHxtt64U0Z1dkXFCTw=[/tex],[tex=0.5x1.0]iwXm0SwS+lfupyC0IyH8yQ==[/tex]zhou
举一反三
- 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}
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']
- intx=5,y=8,z=7;表达式z=!(x>y)||(x=1,y=3)计算后的结果 A: x=1,y=3,z=1 B: x=1,y=3,z=0 C: x=5,y=8,z=0 D: x=5,y=8,z=1
- 【单选题】设X为连续型随机变量, 其概率密度: f(x)=Ax2, x∈(0,2); 其它为0. 求(1)A=(); (2) 分布函数F(x)=(); (3) P{1<X<2} (10.0分) A. (1)3/8; (2)x<0, F(x)=0; 0≤x<2, F(x)=1/8x³; x≥2, F(x)=1; (3) 7/8 B. (1)5/8; (2)x<0, F(x)=0; 0≤x<2, F(x)=1/8x³; x≥2, F(x)=0 (3) 1/8
- 求下列曲线[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]绕给定坐标轴旋转一周得到的旋转曲面的方程:[tex=8.286x3.929]tS57oNKZfqoVB2b/pWUo0RKrZCbY/kgSSYlbr7zBtp5CCE9WplNbypM8ER5l1j+fvWHcRvq70b6rwkGNjvwjSNOgcifvrfPTAqlRqpRaKgs5IB0w+vx0cfn6TVkykvu0[/tex][tex=0.5x0.786]gdMkE6SnyZedYLxpUxdkaQ==[/tex]轴