• 2022-06-17
    证明 :[tex=7.643x1.286]002prxfqjwajDFqJSFJR73w1qB9EJpy+2Cr3Zo3JOltlVAW64SkpPlsmdnV4LduX[/tex] ;
  • [tex=26.857x2.857]RKXCJ8REJuhc1f/984UNqy4QYbfUruz9pmXv0f4xfNyU5OIasvwu6uiGH4ZikQ4vKWwfgGxLeB8ffdicYZJo0fAJPdG6hcMz2vTq3R0B0LrD0KzJaUXMxToBoGn5MimAhKfZW9qgAXyxjS8XV/WGfc1dRgpFzaR89PI4NffFJ4MeJ7zG34AfuXqmfrgrpZjin+BSabmDFvQXPNDSwa73XnQ5EZQydpO83LTPAAc5XS0=[/tex].

    内容

    • 0

      若w=1,x=2,y=3,z=4;则条件表达式w>x?w:y A: 4 B: 3 C: 2 D: 1

    • 1

      以4,9,1为为插值节点,求\(\sqrt x \)的lagrange的插值多项式 A: \( {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) + {1 \over {24}}(x - 4)(x - 9)\) B: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) + {1 \over {24}}(x - 4)(x - 9)\) C: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x +1) + {1 \over {24}}(x - 4)(x - 9)\) D: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) - {1 \over {24}}(x - 4)(x - 9)\)

    • 2

      若w=1,x=2,y=3,z=4,则条件表达式w<x ? w:x的值是( )。 A: 4 B: 3 C: 2 D: 1

    • 3

      若w=1,<br/>x=2, y=3, z=4, 则条件表达式w A: 4 B: 3 C: 2 D: 1

    • 4

      若w=1,x=2,y=3,z=4,则条件表达式w<x?w:y<z?y:z 的值是______。 A: 4 B: 3 C: 2 D: 1