3.已知函數(shù)f (x), g (x)在 R上是增函數(shù).求證:f [g (x)]在 R上也是增函數(shù). 查看更多

 

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已知函數(shù)f (x), g (x) R上是增函數(shù),求證:f [g (x)] R上也是增函數(shù)。

 

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已知函數(shù)f (x), g (x) R上是增函數(shù),求證:f [g (x)] R上也是增函數(shù)。

 

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已知函數(shù)yf(x)在R上是增函數(shù),求證:若yg(x)在(ab)上是增函數(shù),則函數(shù)

yfg(x)]在(ab)上也是增函數(shù).

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已知函數(shù)yf(x)在R上是增函數(shù),求證:若yg(x)在(ab)上是增函數(shù),則函數(shù)

yfg(x)]在(a,b)上也是增函數(shù).

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已知函數(shù)y=f(x)在R上是增函數(shù),求證:若y=g(x)在(a、b)上是增函數(shù),則函數(shù)y=f[g(x)]在(a,b)上也是增函數(shù).

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