关于Sinn的百科

• Sinn造句怎么写

• HowmanyNorthernIrelandProtestantsvoteforSinnFein?SinnFeinhasevidentlycalculatedthatthisriskisworthtaking.DuringthevisithepromisedtopushSinnFeintomakeconcretepositivedecisions.ProvokedaspatwithSinnFeindaysbeforethesoldiersinAntrimwerekilled.Thehopeist...
• 2018-12-077900

• 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+cos2α=1,所以f(α)的值域为{1};当n=4时,f(α)=sin4α+cos4...
• 2020-08-0122010