用“Sinn”造句大全，Sinn造句
HowmanyNorthernIrelandProtestantsvoteforSinnFein?SinnFeinhasevidentlycalculatedthatthisriskisworthtaking.DuringthevisithepromisedtopushSinnFeintomakeconcretepositivedecisions.ProvokedaspatwithSinnFein...
设f(α)=sinnα+cosnα,n∈{n|n=2k,k∈N*}(1)分别求f(α)在n=2,4,6时的值域...
问题详情：设f(α)=sinnα+cosnα,n∈{n|n=2k,k∈N*}(1)分别求f(α)在n=2,4,6时的值域;(2)根据(1)中的结论,对n=2k(k∈N*)时,f(α)的取值范围作出一个猜想(只需写出猜想,不必*).【回答】:(1)当n=2时,f(α)=sin2α+cos2...