• 2022-06-08
    确定函数[tex=7.357x1.286]i5XD944bwobU8Bo5mdYQHbh+e+l4agRuv5dc1Htqrqc=[/tex]的单调性。
  • 解 [tex=17.429x3.071]SMCiZCjCLMG8LLJWa9iOzNZ8B8I5uvq51qBpXZgg12SNGIO6g13xgvPKS1/JaRgenngEUcvi4ft8IeTDgaGNhZ4HanZvrj+t57Bl1H2BuCfyY8oGvU3dqispOa0MwAph5KuLA0Yb0zhc5FU5bi2us9eqdteXnvuuBRGxFZggYUX7N0zN0KcC+FfQpem0DkdOyK34OLeDftdV7Wye7yUUMHhykmA6nlMU7ogF6pRSEO4=[/tex]因为[tex=17.929x5.929]SMCiZCjCLMG8LLJWa9iOzAapGm14DNzxBpDj8Tbc//DCLDRT62V/BARvM5PdHV8zFXTZkBLGBc9ILnQwCt2KlUvQBtzlNmoIRX3S0F/b6XDSGddquldB9dzLAAyTyFDe4ZTlhtEgaM3IZTjyNSCcnWfrO4ee1qBmxD8a5ndur0PxaOcDL9Bx4BoOIs45uB36xQyNFcnkjKIv2yS73I3MAcCyYE5zbQZGh0JldJ+7u+7D/LGwjepsa8dpDM4WKMBz0aydcz/R7FRMWuEqihsUR8tQoLAcfw/ODI3o5xRI/mVnT8ORXh+OiqCb6ZKy/ecOp2/AnWvXe04e8ge9lfLTtE+h3sIgod/gazA/d5wxAyk=[/tex]所以当[tex=3.214x1.286]wWpdqslWNubnr1qQU58hQU4/+A/PcqEYRRBFKc8Cm+k=[/tex]时 , 有 [tex=16.429x1.286]6aieyNGfhJzWM6A9schJ238l7m8kf0KJTdByfb9k2iHKz7NZ45zaSG+tGgvCIAPmtLbf9lgdCHPYuvIi2L6Trr7J/aap9y516G0aoqyjL08=[/tex], 从而[tex=11.571x1.286]HCtuHMYMDvNZHPZ/9ddNnRchUD3Whz288zgfZZlt9o0w6XK574uRrdffZcnMlAEcMieaZqTqLrq5gsyRFTnlcg==[/tex][tex=16.929x1.286]rPxXeSKvrZnMXREybvs5pB/nq9MCxdGMLZKbo20c9cuaLoIbueYenM1umvgAiNo49zYAjqPZZUR1rQTo2YC4jRBvuAhA1y9eS7+B7yZfC/8=[/tex],即 [tex=7.929x1.286]rlljpUccCcuoaFY9yuBYaBgy/hyb4SyPuVI+5b7nFSyasZslgWMu+mBTY9W+8vxV[/tex], 于是函数 [tex=7.357x1.286]i5XD944bwobU8Bo5mdYQHbh+e+l4agRuv5dc1Htqrqc=[/tex]在[tex=5.571x1.286]OU7BNJz+XB0V3eWyHOR3RB2ejJvGUMYy6dsUCZAZTgg=[/tex]是单调递增函数。

    内容

    • 0

      已知a=[1 2 3; 4 5 6; 7 8 9],执行命令:a([3,1],:)=a([1,3],:),a将变为( )。 A: [4 5 6;4 5 6;4 5 6] B: [7 8 9;4 5 6;1 2 3] C: [2 2 2;5 5 5;8 8 8] D: [3 2 1;6 5 4;9 8 7]

    • 1

      函数\( y = x + \sqrt {1 - x} \)的极大值为( ) A: 0 B: 1 C: \( {5 \over 4} \) D: \( {4 \over 5} \)

    • 2

      for (int i = 1; i <= 10; i++){ if (i % 5 != 0) continue; Console.WriteLine("{0}", i); }该段程序执行后输出_____。 A: 5 10 B: 1 2 3 4 6 7 8 9 C: 5 D: 1 2 3 4 5 6 7 8 9 10

    • 3

      以下程序的输出结果是___________。for i in range(1,11): print(i, end = " ") A: 1 2 3 4 5 6 7 8 9 B: 1 2 3 4 5 6 7 8 9 10 C: 1 2 3 4 5 D: 1 3 5 7 9

    • 4

      求下列函数的单调区间、凹凸区间、极值点、拐点和渐近线,并绘图(图略).(1) [tex=6.643x1.5]bfylM61K4fB2dxr0OSsfGnNoGCHA31PVTv+V6O1K8rw=[/tex](2)[tex=7.643x1.571]v8BogKFXW30N+HMJ7QR6DhxEDs5D0riUpoj095rhlGc=[/tex](3) [tex=3.714x2.143]X1YpNX45Pb+t3RD9Lv2Xa/npVx6iPUE04M2Y4K2k/cw=[/tex](4) [tex=5.071x3.0]4TWEbfJ+QFPbBo6PXWTsCrjc66tVrHBOTlDUBxhSpARz8/MfCO/nUo/gE3SyIffw[/tex](5)[tex=6.571x2.429]gt+k1kCw/+VFBVaKddmG6PvDvxiTdyZFXDwIPBeuGlw=[/tex](6)[tex=5.643x1.429]Hzyd6Qvm69qjRqgBIuKTx/cTmFyy56Dt2K/GC7NoCdc=[/tex](7) [tex=7.143x1.214]CwtdUElTamN1NqF0aKHeWGdaXEazoOnz3w3c67izzuE=[/tex](8)[tex=4.714x2.786]cxjZEag+Wbr67lAUIC3Slk2OV17yHgezOhFRferr5F0=[/tex].