• 2022-07-23
    将函数[tex=5.5x1.5]m6cYVjoMCkqsXmlvKBGhC9IYPAcIXW3CUpAxG1yMhns=[/tex]其中p为正整数,化为三角多项式:[tex=8.286x2.857]e5Xcib1BNiRRORz39D6A1uyuZgK7/+Cdpx8iF6XIfxNAKV+dAdoxPkWzJtWkEc+9[/tex],以求[tex=3.0x1.571]UNeMS1ImZKjTwOSv6ZuQrw==[/tex]
  • 解 设[tex=6.571x1.143]a5mdtCjC+G3vepquBawaJ8ZJ7GNclacwwVW7xc0hqoY=[/tex],则[tex=6.429x2.357]+wxdDcxc+JLO16nqDOsbs6mRlwe/hdxLSAt3uIPz4Crg9lS4OYUYLJXGs6EE/FFu[/tex],其中[tex=0.429x1.071]q39XLHoh8ePD7hLoK2ikmA==[/tex]及[tex=0.429x0.929]r8lLiDb0KHTzu/2y/Au89w==[/tex]的共轭复数,于是[tex=24.071x7.357]Ck4j1YFlvVH5wCAykOEMi6kHHBHgBT36JRE37WJXJyIWxa42UbD/7ad/DXHLLgMdx4vcmdzHiUsBr7Z4YNnCL3koitNtxn6sH5kboK2QyIt9V/XLsO1clH+VK8TKpGbDtZTgBW3UcGxN4Msx3qQ0mvk0FvV+/hvEo/+laST5+RSlCUlIHWr9yNbr7GT//bm4BrthdmUSEgXS4iOh78Gn+mLs/cVER0RajqYkByqaAtJcUMo7FnnrO7RdALwVv3DM4CaXwthVNexO5VIiNWOXaQTPii4KdNMELV1Jreq/5PM3WO9ZGRwA0612PEM6AU/uy7ZZErLVju1jzqC8zheSf4tLwPWuHr9oxK14d0mGEbLtzFN1mxJb28GxoNQk2uEC[/tex]所以,[tex=26.714x6.786]sY1rVnynZzneY0s1bztHF4zS3Hin9ek2OnqgW69oAimqWDNsdj3zCmSoep2Jzn3ClVYU2P/xTjBoP0blH4Ur0IgoB5bG3ltq6PiVZ2yaBfW03gSfPMkMZ6p//bS5FKF58rJcxKH+shfU7PejwVn1ybGBItH5YuI3dxyTmpaavhmFLVx7hAjgS8jaZlscetTS/Nx6BNJr+jvKI2L4aDaVx70v+RNqErIFVkwhlQuPHdF8zdG7HjaeykYnetzAtRAopXJ4e0uhJpoJivkmgXfOHNF220JHRyIElzIbXO3lyeVdteoi7hABuVw7tnEzuM27e86+PRRaSwusIqRzVHEkuRufIFmTwq6EFAPMDINW/O8=[/tex]

    内容

    • 0

      证明:次数>0 且首项系数为 1 的多项式[tex=1.857x1.357]BGkv0wKMIn2R4tUsMDFEFA==[/tex]是一个不可约多项式 的充分必要条件是,对任意多项式[tex=1.857x1.357]QPi3lZKJ+q/B5QY5cuDuQg==[/tex]必有(f(x), g(x))=1,或者对某一正整数[tex=6.0x1.357]bR39wf/Hz75eMrt08Xqk8wt4bXTUCgLbWgBjqC5Zmko=[/tex].

    • 1

      下列函数是哪些函数复合而成的?(1)[tex=4.214x1.286]6PuLCl/TwscTl61WSePGog==[/tex];(2)[tex=5.214x1.286]+mZ2Cm2OprRKGTGg0iqmyZx+4lZ796PxrSQNx30R9UU=[/tex];(3)[tex=4.214x1.357]jTbrMH55vzOFOJlLSnfh103OHFmRhIjXZGzPnfweOX0=[/tex];(4)[tex=6.071x1.286]W2A0mViHY0pK74wEByr6ED5K+AKV/pxHaeQdYGQBxwc=[/tex];(5)[tex=6.714x1.429]8up/G1s+GteD9ejcGkFVmYl3TTtTik5kuwrPDCv0JkbGIWyY33cnaw7XtBiPcSnh[/tex];(6)[tex=5.714x1.286]APaFs2rWyubdkzLcUVVxVJSSAsLEOtXn4KjnToE2BQA=[/tex];

    • 2

      输出九九乘法表。 1 2 3 4 5 6 7 8 9 --------------------------------------------------------------------- 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 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81

    • 3

      已知[tex=5.0x1.286]nNRgYScRPw16N2lBJqtTsA==[/tex],[tex=5.0x1.286]ZIJz5gTGIgdeWAGMFdoL1A==[/tex],则[tex=6.214x1.286]wE5wtWoL9HR6uGPZrIzvHA==[/tex]成立的[tex=0.571x1.286]XubEW9+1+hkJqH7jXe5MrA==[/tex]值为 A: 1 B: 2 C: 4 D: 6 E: 8

    • 4

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