2023-2024学年云南省高二年级12月月考卷(24-215B)数学.考卷答案

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2023-2024学年云南省高二年级12月月考卷(24-215B)数学.考卷答案试卷答案

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theproudmomoftwopitbulls(比特犬)namedMilaandHuxley.Inavideo,weseeherfurbabieswalkingaroundwhensheasksthemaveryimportantquestionusingalltheirfavoritewords..“Guesswhat??”shesays.“YesterdayIwentfora‘ride'to‘grandma's’house,andwhenIgotto‘grandma's'houseshowedherallthenewdog'toys'Igot..AndthenafterIwentfora‘walk'tothe‘dogpark'..’Justlookattheirfaces!Everytimetheirmomusedoneofthosemagicbuzzwords,theysatupalittlestraighterandtheireyeslitupwithinterest.Theyweretotallyonboardforthisi-maginarytrip!Perhapsthat'sbecausegrandmahasbeenknowntospoilthemeverynowandthen."She'sclearlythefavorite,KaitlyntoldTheDodo."Shebringspersonalizedbagswiththeir

分析直接利用分段函数求解函数值即可.

解答解:函数$f(x)=\left\{\begin{array}{l}1-3x,x<1\\-{2^x},x≥1\end{array}\right.$,
则f(f(-1))=f(1+3)=f(4)=-24=-16.
故答案为:-16.

点评本题考查分段函数的应用,函数值的求法,考查计算能力.