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下列各组函数中,为同一函数的一组是( ) A.f(x)=x与 B.f(x)=|3...
下列各组函数中,为同一函数的一组是( )
A.f(x)=x与
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B.f(x)=|3-x|与g(t)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225127489887960/SYS201311012251274898879002_ST/1.png)
C.
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与g(x)=x+3
D.f(x)=log
3x
2与g(x)=2log
3
考点分析:
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、
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分别表示A、B事件的对立事件),那么( )
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是必然事件
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与
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一定互斥
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一定不互斥
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