(1)若函数y=log(a^2-1为底数)x为真数在(0,正无穷)上是减函数,则a属于?(2)不等式log(2)x<=-1/2的解是?麻烦老师写出细节过程.
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/26 05:13:27
![(1)若函数y=log(a^2-1为底数)x为真数在(0,正无穷)上是减函数,则a属于?(2)不等式log(2)x<=-1/2的解是?麻烦老师写出细节过程.](/uploads/image/z/2554403-59-3.jpg?t=%EF%BC%881%EF%BC%89%E8%8B%A5%E5%87%BD%E6%95%B0y%3Dlog%28a%5E2-1%E4%B8%BA%E5%BA%95%E6%95%B0%29x%E4%B8%BA%E7%9C%9F%E6%95%B0%E5%9C%A8%EF%BC%880%2C%E6%AD%A3%E6%97%A0%E7%A9%B7%EF%BC%89%E4%B8%8A%E6%98%AF%E5%87%8F%E5%87%BD%E6%95%B0%2C%E5%88%99a%E5%B1%9E%E4%BA%8E%3F%EF%BC%882%EF%BC%89%E4%B8%8D%E7%AD%89%E5%BC%8Flog%282%29x%EF%BC%9C%3D-1%2F2%E7%9A%84%E8%A7%A3%E6%98%AF%3F%E9%BA%BB%E7%83%A6%E8%80%81%E5%B8%88%E5%86%99%E5%87%BA%E7%BB%86%E8%8A%82%E8%BF%87%E7%A8%8B.)
(1)若函数y=log(a^2-1为底数)x为真数在(0,正无穷)上是减函数,则a属于?(2)不等式log(2)x<=-1/2的解是?麻烦老师写出细节过程.
(1)若函数y=log(a^2-1为底数)x为真数在(0,正无穷)上是减函数,则a属于?
(2)不等式log(2)x<=-1/2的解是?麻烦老师写出细节过程.
(1)若函数y=log(a^2-1为底数)x为真数在(0,正无穷)上是减函数,则a属于?(2)不等式log(2)x<=-1/2的解是?麻烦老师写出细节过程.
x为真数在(0,正无穷) 是减函数 ,所以 0