f(x)=sin²x+根号3·sinx·cosx.求最小正周期.~急~!
f(x)=sin²x+根号3·sinx·cosx.求最小正周期.~急~!
f(x)=sin²x+根号3·sinx·cosx.求最小正周期
f(x)=sin²x+根号3·sinx·cosx.求最小正周期
数学人气:697 ℃时间:2019-12-20 06:30:50
优质解答
f(x)=sin²x+根号3·sinx·cosx =(1-cos2x)/2+(根号3)*(1/2)*sin2x =【2*sin(2x+π/6)+1】/2 所以T=π
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