1.函数y=cos2分之X的最小正周期为?2.平面上俩定点A(-7,0),B(7,0)的距离之差的绝对值等于10的点的轨迹方程为?3.若向量A=(X,2),B=(-2,4)且A,B共线,则X等于多少4.函数Y=-2SIN(2X-3分之派)的最小值为?5.等差
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![1.函数y=cos2分之X的最小正周期为?2.平面上俩定点A(-7,0),B(7,0)的距离之差的绝对值等于10的点的轨迹方程为?3.若向量A=(X,2),B=(-2,4)且A,B共线,则X等于多少4.函数Y=-2SIN(2X-3分之派)的最小值为?5.等差](/uploads/image/z/8601474-66-4.jpg?t=1.%E5%87%BD%E6%95%B0y%3Dcos2%E5%88%86%E4%B9%8BX%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%E4%B8%BA%3F2.%E5%B9%B3%E9%9D%A2%E4%B8%8A%E4%BF%A9%E5%AE%9A%E7%82%B9A%28-7%2C0%29%2CB%287%2C0%29%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B9%8B%E5%B7%AE%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E7%AD%89%E4%BA%8E10%E7%9A%84%E7%82%B9%E7%9A%84%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%E4%B8%BA%3F3.%E8%8B%A5%E5%90%91%E9%87%8FA%3D%28X%2C2%29%2CB%3D%28-2%2C4%EF%BC%89%E4%B8%94A%2CB%E5%85%B1%E7%BA%BF%2C%E5%88%99X%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%914.%E5%87%BD%E6%95%B0Y%3D-2SIN%282X-3%E5%88%86%E4%B9%8B%E6%B4%BE%29%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E4%B8%BA%3F5.%E7%AD%89%E5%B7%AE)
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