1.一正弦曲线的一个最高点为(1/4,3),从相邻的最低点到这个最高点的图像交x轴于点(-1/4,0)最低点的纵坐标为-3,则求解析式.2.f(x)=3sin(kx/5+3)(k≠0)的最小周期不大于1,那么最小正数k的值为___.
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![1.一正弦曲线的一个最高点为(1/4,3),从相邻的最低点到这个最高点的图像交x轴于点(-1/4,0)最低点的纵坐标为-3,则求解析式.2.f(x)=3sin(kx/5+3)(k≠0)的最小周期不大于1,那么最小正数k的值为___.](/uploads/image/z/2687951-47-1.jpg?t=1.%E4%B8%80%E6%AD%A3%E5%BC%A6%E6%9B%B2%E7%BA%BF%E7%9A%84%E4%B8%80%E4%B8%AA%E6%9C%80%E9%AB%98%E7%82%B9%E4%B8%BA%EF%BC%881%2F4%2C3%EF%BC%89%2C%E4%BB%8E%E7%9B%B8%E9%82%BB%E7%9A%84%E6%9C%80%E4%BD%8E%E7%82%B9%E5%88%B0%E8%BF%99%E4%B8%AA%E6%9C%80%E9%AB%98%E7%82%B9%E7%9A%84%E5%9B%BE%E5%83%8F%E4%BA%A4x%E8%BD%B4%E4%BA%8E%E7%82%B9%EF%BC%88-1%2F4%2C0%EF%BC%89%E6%9C%80%E4%BD%8E%E7%82%B9%E7%9A%84%E7%BA%B5%E5%9D%90%E6%A0%87%E4%B8%BA-3%2C%E5%88%99%E6%B1%82%E8%A7%A3%E6%9E%90%E5%BC%8F.2.f%28x%29%3D3sin%28kx%2F5%2B3%29%28k%E2%89%A00%29%E7%9A%84%E6%9C%80%E5%B0%8F%E5%91%A8%E6%9C%9F%E4%B8%8D%E5%A4%A7%E4%BA%8E1%2C%E9%82%A3%E4%B9%88%E6%9C%80%E5%B0%8F%E6%AD%A3%E6%95%B0k%E7%9A%84%E5%80%BC%E4%B8%BA___.)
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