f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3

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f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3
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f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3
f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3

f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3
原式=f(x)=sinπ/2-2√3(√2/2)^2+√3
=1-2√3×1/2+√3
=1-√3+√3
=1