问题标题:
已知函数f(x)=sin(wx+π/4)(x∈R,w>0)的最小正周期为π,求f(π/6)
问题描述:
已知函数f(x)=sin(wx+π/4)(x∈R,w>0)的最小正周期为π,求f(π/6)
郭金玉回答:
w=2
f(π/6)=sin(7π/12)
=(根号6-根号2)/4
郭金玉回答:
输错了,
w=2
f(π/6)=sin(7π/12)
=(根号6+根号2)/4
姜云飞回答:
解析
郭金玉回答:
周期T=2π/w=π
w=2
f(π/6)=sin(7π/12)
=sinπ/3cosπ/4+cosπ/3sinπ/4
=(根号6+根号2)/4
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