• 2022-06-29
    设[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]具有二阶导数,求函数的二阶导数:[tex=5.643x2.357]pLw5A+iYl2iOK7xNtm0Cj0zvO8oO/aszVgpZe/9Wg1WsHpTEBuLT7q8t4bVprWA2[/tex]。
  • 解:[tex=14.929x2.5]ta48wrW1IXgB1XytzeZ0e8Mqsh9AuQAtdSgv99Vh+ciX6JTrCfFXsEIkyQ0HBMBRHrtRValO81AjTGNuRsrCsFspbzwN3c8riVZ+iRdtQoNUnJLlz2MvJkp78Ixavxxrrm51pti4La60bTCXCnB9c4gid9Jwi6tqQA7GC6VXN+U=[/tex][tex=14.5x2.357]DDU2DMjEc779c4PhwjP4Kvbg61azAbEjh791vkOuebnLs50zKtNrYVbC8UTJndNC4n/RKpCp3ZBigBePOFgnWw1Opg0+IiAd6zv/O7BxlbqCgz+c40wMOg2AZ/IRIOQNtlNx7w14vXa/rIVXSYb1EA==[/tex][tex=8.286x2.357]DDU2DMjEc779c4PhwjP4KrT5fevlaA/NgwmG1+uE8rCLp184jLFpw2PMpq+9xvsRc4CEm3HtMGFpCpp5Qm1wdKpdO/qiIED1gnVKQS14faA=[/tex]。[tex=20.714x2.5]Ei2PZQl92La73hUrygebcxRtiDSnRQVq8eaGVhqizmAf+z9WyBHQyfI6VvohSao5gjNNAZ+1jsSsocFy4IKU/pmZa4Run+DadxwCfbr7lwV46ao1qSMJfGoEO78Y2viWcOgU13Rl6BKI37A8RsWwgBDRNH+Y9fuVrEu7IQ0WVp6VlZxOrEpY5Y8OyWba1hN7T4NytTTzm7UV4ou2doILSV8lemhIip5fImwfzZc1g3Q=[/tex][tex=21.571x2.357]9W547bwcZHa4ao3CZR692jRYzqMOons+h+e/41RPffjI8GwvKphqpuL+kPfNSDeIHROr7A+5VxrWiLZyKqkePMQAX8948xCXtjZmnLJcTZYXIn+8hYv4tyCNtcvqZErR9+nWpG5P86ZGSP3Udw9sL/gJpqUhlUYFvvNqPvDRq5zebCQTFc0v7Ta1RjIoBX7IaTrZMdCT4nIMnhEd3URsUZ1CA724vSVE27fnjGN4FhrgBa6QgezPINb74P+lu7Fc[/tex],即[tex=16.643x2.357]Ei2PZQl92La73hUrygebc6lhokLsjCDpUSDzvyDKSJy4V+5EaM/ri+5bhssQd6oyFyZBC+wEn5bMaOa6xlvWe7LunaltW78tuyLY9zxCxir5P93YW56ZW4HviTiTPMDW+qaxA8H6iVhVPRKlRoYBNVlK8PP+X7kfyMgyRmHuhN3PSNVJDhbAgTYX3Q5r6e8YJm2NqSFiOxV5XPWleVTysg==[/tex]。

    内容

    • 0

      【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=

    • 1

      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

    • 2

      设DES加密算法中的一个S盒为: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 14 4 13 1 2 15 11 8 3 10 6 12 5 9 0 7 0 15 7 4 14 2 13 1 10 6 12 11 9 5 3 8 4 1 14 8 13 6 2 11 15 12 9 7 3 10 5 0 15 12 8 2 4 9 1 7 5 11 A: 1010 B: 0001 C: 1011 D: 0111

    • 3

      设函数[tex=6.571x1.5]sE6Aas6x+mULF9vvpSmxZ+FhRWN40wttmb1RYCf053k=[/tex]。(1)求一阶导数[tex=2.214x1.429]iNxCerDUViDWTqUmlPeFSQ==[/tex];(2)证明[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]在[tex=1.857x1.0]jl8uliKUg6qIeVpZvtGL9Q==[/tex]处不存在二阶导数。

    • 4

      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