已知集合M={x|
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},N={x|
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},則M∩N=" " ( )
A.{x|-1≤x<1} | B.{x |x>1} | C.{x|-1<x<1} | D.{x|x≥-1} |
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科目:高中數(shù)學(xué)
來源:不詳
題型:解答題
(12分)已知集合
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(1)若
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求實數(shù)m的值;
(2)若
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求實數(shù)m取值范圍。
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科目:高中數(shù)學(xué)
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設(shè)集合
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,若
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,則實數(shù)
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的取值范圍為
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科目:高中數(shù)學(xué)
來源:不詳
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若全集U=R,集合A={
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},B={
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},則CU(A∩B)為( )
A.{
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|
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或
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} B.{
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|
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或
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}
C.{
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|
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或
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} D.{
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|
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或
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}
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科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
已知
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,若對所有
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,則b的取值范圍是
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科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
集合
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,
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,則下列結(jié)論正確的是 ( )
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