f(x)=sin^2x-2根号3sinxcosx+3cos^2x怎样化简?

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f(x)=sin^2x-2根号3sinxcosx+3cos^2x怎样化简?
f(x)=sin^2x-2根号3sinxcosx+3cos^2x怎样化简?

f(x)=sin^2x-2根号3sinxcosx+3cos^2x怎样化简?
f(x)=sin^2x-2√3sinxcosx+3cos^2x
=(sinx - √3cosx)^2