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已知集合,且,则

 已知集合6ec8aac122bd4f6e,且6ec8aac122bd4f6e,则6ec8aac122bd4f6e

 

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 函数6ec8aac122bd4f6e,则6ec8aac122bd4f6e的值为6ec8aac122bd4f6e

 

 

 

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 如果指数函数6ec8aac122bd4f6e是R上的减函数,则实数6ec8aac122bd4f6e的取值范围是6ec8aac122bd4f6e

 

 

 

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 若6ec8aac122bd4f6e是定义在6ec8aac122bd4f6e上的奇函数,且在6ec8aac122bd4f6e上单调递减,若6ec8aac122bd4f6e,则6ec8aac122bd4f6e的取值范围是                                                        (    )                                              

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 设偶函数6ec8aac122bd4f6e6ec8aac122bd4f6e上为减函数,且6ec8aac122bd4f6e,则不等式6ec8aac122bd4f6e的解集为                                                                       (    )

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