已知f(x)=-4cos²x-4√3asinxcosx,将f(x)的图像向左平移π/4,向上平移2个单位.平移后图像关于直线x=π/12对称1、 求f(x)的最小正周期,并求实数a 的值2、不等式|f(x)|-m<4在x属于【π/6,2π/3】上
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![已知f(x)=-4cos²x-4√3asinxcosx,将f(x)的图像向左平移π/4,向上平移2个单位.平移后图像关于直线x=π/12对称1、 求f(x)的最小正周期,并求实数a 的值2、不等式|f(x)|-m<4在x属于【π/6,2π/3】上](/uploads/image/z/14982425-17-5.jpg?t=%E5%B7%B2%E7%9F%A5f%28x%29%3D-4cos%26%23178%3Bx-4%E2%88%9A3asinxcosx%2C%E5%B0%86f%EF%BC%88x%EF%BC%89%E7%9A%84%E5%9B%BE%E5%83%8F%E5%90%91%E5%B7%A6%E5%B9%B3%E7%A7%BB%CF%80%2F4%2C%E5%90%91%E4%B8%8A%E5%B9%B3%E7%A7%BB2%E4%B8%AA%E5%8D%95%E4%BD%8D.%E5%B9%B3%E7%A7%BB%E5%90%8E%E5%9B%BE%E5%83%8F%E5%85%B3%E4%BA%8E%E7%9B%B4%E7%BA%BFx%3D%CF%80%2F12%E5%AF%B9%E7%A7%B01%E3%80%81+%E6%B1%82f%EF%BC%88x%EF%BC%89%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%2C%E5%B9%B6%E6%B1%82%E5%AE%9E%E6%95%B0a+%E7%9A%84%E5%80%BC2%E3%80%81%E4%B8%8D%E7%AD%89%E5%BC%8F%7Cf%28x%29%7C-m%EF%BC%9C4%E5%9C%A8x%E5%B1%9E%E4%BA%8E%E3%80%90%CF%80%2F6%2C2%CF%80%2F3%E3%80%91%E4%B8%8A)
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