設(shè)
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且
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若定義在區(qū)間
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內(nèi)的函數(shù)

是奇函數(shù),則

的取值范圍是
先根據(jù)奇函數(shù)的概念,求出

的值,進(jìn)而再求出函數(shù)的表達(dá)式,再求出表達(dá)式的定義域,從而根據(jù)含

的定義域是其子集求出結(jié)果。
解析:

得
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
,從而
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,
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從而

得

,

,

故
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