求[tex=2.143x1.0]MjtTTawwKCVkmU9qI4ZTtw==[/tex]在给定点处点值：[tex=9.929x1.357]38nH88TYQeua1gkYmPMi9Dt4XPtdowDmvzaSJY4HzcUXFYH/hG5LTzknMJ34AQ2D[/tex]在点[tex=4.143x1.357]3xAz2US9xhu9AMveEaE0BA==[/tex]处
举一反三
- 求[tex=2.143x1.0]MjtTTawwKCVkmU9qI4ZTtw==[/tex]在给定点处点值：[tex=7.929x1.429]gdt7Wu9WBle1W+CLRQ0W5frs0Om2G+H5KgyD9E16iGg=[/tex]在点[tex=4.143x1.357]XcvBDIl/dF5kYIJKHW4sww==[/tex]处
- 求[tex=2.143x1.0]MjtTTawwKCVkmU9qI4ZTtw==[/tex]在给定点处点值：[tex=7.143x1.429]jm2gnW8xKQ8UBOPR3V+Qdb1beTT+UsOCqj+b57DUQ9k=[/tex]在点[tex=4.929x1.357]4OVG1YvMDqEP245CREDXtQ==[/tex]处
- 求[tex=2.429x1.0]lBXXZYMMrxJ2+/5vAU9EvRXUF4g1sWldFgFd3reSCAg=[/tex]在给定点的值[tex=3.714x1.214]Ufh7uZIAjbogB4YrcNVOQ82psc3liQ5bDDvtUOvk8J+8E1df2qxGCV3J98DJ44f2[/tex]在[tex=4.143x1.357]3xAz2US9xhu9AMveEaE0BA==[/tex] 处,其中 [tex=6.214x1.214]k/uI2sUKIXe6qNX1xuYvx6GgB2KTd/Jj7iD/uQbruxMxkoyLoWbs+DpBZkFD+cwjcDGiM6D9U698HldFhxQ4C5mw5FIea63HddJ8Fzjs8TQ=[/tex]
- 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: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) - {1 \over {24}}(x - 4)(x - 9)\)
- 求下列函数在给定点处的导数：[tex=4.429x2.786]qiPQal60IMRfrXhROk5SDEcTuq69GV6ztKqmHNlhUFg=[/tex]，在x=9处。