計(jì)算=_______．

函數(shù)的單調(diào)遞增區(qū)間是       ．

若函數(shù)的定義域?yàn)?img src="http://thumb.1010pic.com/pic5/tikupic/74/1/1aspf3.png" style="vertical-align:middle;" />，值域?yàn)?img src="http://thumb.1010pic.com/pic5/tikupic/b8/0/1oppc2.png" style="vertical-align:middle;" />，則的取值集合為   

如果函數(shù)在區(qū)間[5,20]不是單調(diào)函數(shù)，那么實(shí)數(shù)k的取值范圍是____________________________.  

已知，則的值等于_____ ,                  

已知函數(shù)f(x)＝x²＋2(a－1)x＋2在區(qū)間(－∞，3]上為減函數(shù)，則實(shí)數(shù)a的取值范圍為________．

若函數(shù)的定義域?yàn)?img src="http://thumb.1010pic.com/pic5/tikupic/12/d/p3ulc4.png" style="vertical-align:middle;" />，值域?yàn)?img src="http://thumb.1010pic.com/pic5/tikupic/30/7/1harx3.png" style="vertical-align:middle;" />，則的取值集合為                   ．

如果函數(shù)在區(qū)間(5,20)不是單調(diào)函數(shù)，那么實(shí)數(shù)k的取值范圍是____________________________. 

已知函數(shù)f(x)=則f(f(－4))= ___________________

函數(shù)，則=           ．