三角函数难题 3.已知函数f(x)=4cosxsin(x+[π/6])-1(1)求f(x)的最小正周期;(2)求f(x)在区间[-π/6,π/4]上的最大值和最小值.4.已知函数f(x)=cos^2ωx+√3sinωxcosωx(ω>0)的最小正周期为π.(1)求f(2/3π)的值
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![三角函数难题 3.已知函数f(x)=4cosxsin(x+[π/6])-1(1)求f(x)的最小正周期;(2)求f(x)在区间[-π/6,π/4]上的最大值和最小值.4.已知函数f(x)=cos^2ωx+√3sinωxcosωx(ω>0)的最小正周期为π.(1)求f(2/3π)的值](/uploads/image/z/7070646-30-6.jpg?t=%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0%E9%9A%BE%E9%A2%98+3.%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3D4cosxsin%28x%2B%5B%CF%80%2F6%5D%29-1%281%29%E6%B1%82f%28x%29%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%EF%BC%9B%EF%BC%882%EF%BC%89%E6%B1%82f%28x%29%E5%9C%A8%E5%8C%BA%E9%97%B4%5B-%CF%80%2F6%2C%CF%80%2F4%5D%E4%B8%8A%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E5%92%8C%E6%9C%80%E5%B0%8F%E5%80%BC.4.%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dcos%5E2%CF%89x%2B%E2%88%9A3sin%CF%89xcos%CF%89x%28%CF%89%3E0%29%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%E4%B8%BA%CF%80.%EF%BC%881%EF%BC%89%E6%B1%82f%282%2F3%CF%80%29%E7%9A%84%E5%80%BC)
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