已知log(1-2a)2x <log(3a-1)x求a的取值范围
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已知log(1-2a)2x <log(3a-1)x求a的取值范围
已知log(1-2a)2x <log(3a-1)x求a的取值范围
已知log(1-2a)2x <log(3a-1)x求a的取值范围
据题意得:1-2a>0
3a-1>0
=>1/3x)
因此可得:1-2a>3a-1=>a
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