一、(1)求函数y=log1/2(1-3^x)-log2(3^x+1/3)的最小值.(2)如果函数f(x)=(log2(x/2))(log2(x/4))的定义域是不等式2(log1/2(x))^2+7log1/2(x)+3≤0的解集,求f(x)的最大值和最小值.二、已知正整数x,y,z和实数a,b,c,d
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 00:18:58
![一、(1)求函数y=log1/2(1-3^x)-log2(3^x+1/3)的最小值.(2)如果函数f(x)=(log2(x/2))(log2(x/4))的定义域是不等式2(log1/2(x))^2+7log1/2(x)+3≤0的解集,求f(x)的最大值和最小值.二、已知正整数x,y,z和实数a,b,c,d](/uploads/image/z/6608449-1-9.jpg?t=%E4%B8%80%E3%80%81%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0y%3Dlog1%2F2%281-3%5Ex%29-log2%283%5Ex%2B1%2F3%29%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC.%EF%BC%882%EF%BC%89%E5%A6%82%E6%9E%9C%E5%87%BD%E6%95%B0f%28x%29%3D%28log2%28x%2F2%29%29%28log2%28x%2F4%29%29%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E6%98%AF%E4%B8%8D%E7%AD%89%E5%BC%8F2%28log1%2F2%28x%29%29%5E2%2B7log1%2F2%28x%29%2B3%E2%89%A40%E7%9A%84%E8%A7%A3%E9%9B%86%2C%E6%B1%82f%28x%29%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E5%92%8C%E6%9C%80%E5%B0%8F%E5%80%BC.%E4%BA%8C%E3%80%81%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%95%B4%E6%95%B0x%2Cy%2Cz%E5%92%8C%E5%AE%9E%E6%95%B0a%2Cb%2Cc%2Cd)
xUnG~\-nXGUu\5V{cXIHR6ClYڍ.rW虝84HEZ|gwΜ3WWȰOqfRo&.;[[S8ƣu
+z,ij4յ5v8C$HvE/JbkXUo%&toa{I+2&B-v$ ?:J%7G@>!
C/!k\ !9 0z2(ro7W@}`WµumZcf5R 3t͂3e
]!ZÎ:ˉq:3IC7$`