命題p:定義域為R的函數(shù)y=x^3-3ax+1有極值點,即為導(dǎo)數(shù)y/=3x^2-3a=0有兩個不等的實數(shù)根,得a>0
命題q:函數(shù)y=lg[x^2-2ax+1]的定義域為R.即為x^2-2ax+1>0恒成立,得-1
命題p:定義域為R的函數(shù)y=x^3-3ax+1有極值點；命題q:函數(shù)y=lg[x^2-2ax+1]的定義域為R.
命題p:定義域為R的函數(shù)y=x^3-3ax+1有極值點；命題q:函數(shù)y=lg[x^2-2ax+1]的定義域為R.
[1]如果“p或q“為真,求實數(shù)a的取值范圍[2]如果"p或q"為真,“p且q”為假,求實數(shù)a取值范圍
[1]如果“p或q“為真,求實數(shù)a的取值范圍[2]如果"p或q"為真,“p且q”為假,求實數(shù)a取值范圍
其他人氣：226 ℃時間：2019-10-19 21:05:50
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