求函数f(x)=√3sin(2x-π/6)+2平方sin(x-π/12)的最小正周期及取得最大值x的集合?

日期:2011-04-05 08:23:48 人气:1

求函数f(x)=√3sin(2x-π/6)+2平方sin(x-π/12)的最小正周期及取得最大值x的集合?

f(x)=√3sin(2x-π/6)+2平方sin(x-π/12) =√3sin(2x-π/6)+1-cos(2x-π/6) =2(√3/2sin(2x-π/6)-1/2cos(2x-π/6))+1 =2(sin(2x-π/6)cosπ/6-cos(2x-π/6)sinπ/6)+1 =2sin(2x-π/6-π/6)+1 =2sin(2x-π/3)+1 所以最小正周期T=2π/2=π 当sin(2x-π/3)=
    A+
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