f（x）=4sin^2（π/4+x）-2根号3cos2x-1化简!

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f（x）=4sin^2（π/4+x）-2根号3cos2x-1化简!
f（x）=4sin^2（π/4+x）-2根号3cos2x-1化简!

f（x）=4sin^2（π/4+x）-2根号3cos2x-1化简!
f（x）=4sin^2（π/4+x）-2根号3cos2x-1
=-(2-4sin^2（π/4+x）+2根号3cos2x+1-2)
=-(2cos(π/2-2x)+2根号3cos2x)+1
=-(2sin2x+2根号3cos2x)+1
=-4(1/2sin2x+根号3/2cos2x)+1
=-4(cos60°sin2x+sin60°cos2x)+1
=-4sin(2x+60°）+1

f（x）=4sin^2（π/4+x）-2厂3cos2x-1
=-(2-4sin^2（π/4+x）+2厂3cos2x+1-2)
=-(2cos(π/2-2x)+2厂3cos2x)+1
=-(2sin2x+2 厂3cos2x)+1
=-4(1/2sin2x+ 厂3/2cos2x)+1
=-4(cos60°sin2x+sin60°cos2x)+1
=-4sin(2x+60°）+1

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