当x=0时,f(0)=2或-2时,f(x)是偶函数.
f(0)=2=2sin(∮-π/6)或f(0)=-2=2sin(∮-π/6)
解得∮=2π/3或7π/6
所以f(π/8)代入数据可得结果.
按条件的f(x)=2sin(1/2(x+tt/6+2TT/3-π/6)=-2sin1/2(x+-π/6)
当x=0时,f(0)=2或-2时,f(x)是偶函数.
f(0)=2=2sin(∮-π/6)或f(0)=-2=2sin(∮-π/6)
解得∮=2π/3或7π/6
所以f(π/8)代入数据可得结果.
按条件的f(x)=2sin(1/2(x+tt/6+2TT/3-π/6)=-2sin1/2(x+-π/6)