已知向量a=(coswx,√3coswx),b=(sinwx,coswx)(其中0<w≤1),记f(x)=a*b-√3/2,且满足f(x+π)=f(x)(1)求函数y=f(x)的解析式(2)当x∈[-π/12,5π/12]时,求函数y=f(x)的值域(3)如果关于x
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![已知向量a=(coswx,√3coswx),b=(sinwx,coswx)(其中0<w≤1),记f(x)=a*b-√3/2,且满足f(x+π)=f(x)(1)求函数y=f(x)的解析式(2)当x∈[-π/12,5π/12]时,求函数y=f(x)的值域(3)如果关于x](/uploads/image/z/12971259-27-9.jpg?t=%E5%B7%B2%E7%9F%A5%E5%90%91%E9%87%8Fa%3D%EF%BC%88coswx%2C%E2%88%9A3coswx%EF%BC%89%2Cb%3D%EF%BC%88sinwx%2Ccoswx%EF%BC%89%EF%BC%88%E5%85%B6%E4%B8%AD0%EF%BC%9Cw%E2%89%A41%EF%BC%89%2C%E8%AE%B0f%EF%BC%88x%EF%BC%89%3Da%2Ab-%E2%88%9A3%2F2%2C%E4%B8%94%E6%BB%A1%E8%B6%B3f%EF%BC%88x%2B%CF%80%EF%BC%89%3Df%EF%BC%88x%EF%BC%89%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0y%3Df%EF%BC%88x%EF%BC%89%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%882%EF%BC%89%E5%BD%93x%E2%88%88%5B-%CF%80%2F12%2C5%CF%80%2F12%5D%E6%97%B6%2C%E6%B1%82%E5%87%BD%E6%95%B0y%3Df%EF%BC%88x%EF%BC%89%E7%9A%84%E5%80%BC%E5%9F%9F%EF%BC%883%EF%BC%89%E5%A6%82%E6%9E%9C%E5%85%B3%E4%BA%8Ex)
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