设函数f(x)=sin^2x+根号3sinxcosx+3/2.若abc分别是△ABC的内角ABC所对的边a=2根号3,c=4,A为锐角,且f(A)是函数f(x)的在[0,π/2]最大值,则b=?f(x)怎么化简啊?我只化到f(x)=1-cos^2x+(根号3/2)sin2x+(3/2)就不
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![设函数f(x)=sin^2x+根号3sinxcosx+3/2.若abc分别是△ABC的内角ABC所对的边a=2根号3,c=4,A为锐角,且f(A)是函数f(x)的在[0,π/2]最大值,则b=?f(x)怎么化简啊?我只化到f(x)=1-cos^2x+(根号3/2)sin2x+(3/2)就不](/uploads/image/z/5632964-44-4.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dsin%5E2x%2B%E6%A0%B9%E5%8F%B73sinxcosx%2B3%2F2.%E8%8B%A5abc%E5%88%86%E5%88%AB%E6%98%AF%E2%96%B3ABC%E7%9A%84%E5%86%85%E8%A7%92ABC%E6%89%80%E5%AF%B9%E7%9A%84%E8%BE%B9a%3D2%E6%A0%B9%E5%8F%B73%2Cc%3D4%2CA%E4%B8%BA%E9%94%90%E8%A7%92%2C%E4%B8%94f%EF%BC%88A%EF%BC%89%E6%98%AF%E5%87%BD%E6%95%B0f%28x%29%E7%9A%84%E5%9C%A8%5B0%2C%CF%80%2F2%5D%E6%9C%80%E5%A4%A7%E5%80%BC%2C%E5%88%99b%3D%3Ff%28x%29%E6%80%8E%E4%B9%88%E5%8C%96%E7%AE%80%E5%95%8A%3F%E6%88%91%E5%8F%AA%E5%8C%96%E5%88%B0f%28x%29%3D1-cos%5E2x%2B%EF%BC%88%E6%A0%B9%E5%8F%B73%2F2%EF%BC%89sin2x%2B%EF%BC%883%2F2%EF%BC%89%E5%B0%B1%E4%B8%8D)
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设函数f(x)=sin^2x+根号3sinxcosx+3/2.若abc分别是△ABC的内角ABC所对的边a=2根号3,c=4,A为锐角,且f(A)是函数f(x)的在[0,π/2]最大值,则b=?f(x)怎么化简啊?我只化到f(x)=1-cos^2x+(根号3/2)sin2x+(3/2)就不
设函数f(x)=sin^2x+根号3sinxcosx+3/2.若abc分别是△ABC的内角ABC所对的边
a=2根号3,c=4,A为锐角,且f(A)是函数f(x)的在[0,π/2]最大值,则b=?
f(x)怎么化简啊?我只化到f(x)=1-cos^2x+(根号3/2)sin2x+(3/2)就不会了
设函数f(x)=sin^2x+根号3sinxcosx+3/2.若abc分别是△ABC的内角ABC所对的边a=2根号3,c=4,A为锐角,且f(A)是函数f(x)的在[0,π/2]最大值,则b=?f(x)怎么化简啊?我只化到f(x)=1-cos^2x+(根号3/2)sin2x+(3/2)就不
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