f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x) 符号打错了
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f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x)符号打错了f(x)=2sin^2(π/4+x)+根号
f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x) 符号打错了
f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)
f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x) 符号打错了
f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x) 符号打错了
f(x)=2sin^2(π/4+x)+√3(sin^2x-cos^2x)
=2sin^2(π/4+x)-√3cos2x
=1-cos(π/2+2x)+√3cos2x
=1+2(√3/2cos2x+1/2sin2x)
=1+2sin(π/3+2x)
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f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x) 符号打错了
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