x=π/6 f(x)=√3/4代入函数方程：(1/2)sin(π/3)sinA+[cos(π/6)]^2 cosA-(1/2)cosA=√3/4(1/2)(√3/2)sinA+(3/4)cosA-(1/2)cosA=√3/4(√3/4)sinA+(1/4)cosA=√3/4(√3/2)sinA+(1/2)cosA=√3/2sin(A+π/6)=√3/20...
已知函数f(x)＝1/2sin2xsinA＋cos^2 xcosA-1/2sin(π/2＋A)其图像过点(π/6,√3/
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