函数y=f(X)(x不等于0)是奇函数,且在(0,正无穷)上是增函数,若f(x)=0,求不等式f[x(x-二分之一)]
0的解集
人气:368 ℃ 时间:2019-11-02 10:45:35
解答
f(x(x-1/2))小于0 0=f(1)
所以f(1)大于f(x(x-1/2)
又因为函数在(0,正无穷)上是增函数
所以1大于x(x-1/2)
x方-1/2x-1小于零
再解出x
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